A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_URI::$config is deprecated

Filename: core/URI.php

Line Number: 101

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Router::$uri is deprecated

Filename: core/Router.php

Line Number: 127

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$benchmark is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$hooks is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$config is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$log is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$utf8 is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$uri is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$exceptions is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$router is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$output is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$security is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$input is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$lang is deprecated

Filename: core/Controller.php

Line Number: 82

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$db is deprecated

Filename: core/Loader.php

Line Number: 396

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_DB_mysqli_driver::$failover is deprecated

Filename: database/DB_driver.php

Line Number: 371

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Trying to access array offset on true

Filename: libraries/Email.php

Line Number: 978

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$email is deprecated

Filename: core/Loader.php

Line Number: 1283

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 295

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 169

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 238

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 318

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 359

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 282

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 289

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 304

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 314

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 315

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 316

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 317

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 375

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 110

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Session cannot be started after headers have already been sent

Filename: Session/Session.php

Line Number: 143

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$session is deprecated

Filename: core/Loader.php

Line Number: 1283

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Blogs::$user_model is deprecated

Filename: core/Loader.php

Line Number: 358

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/User.php
Line: 7
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 8
Function: __construct

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$load is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$pgmodule is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$benchmark is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$hooks is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$config is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$log is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$utf8 is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$uri is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$exceptions is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$router is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$output is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$security is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$input is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$lang is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$db is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$email is deprecated

Filename: core/Loader.php

Line Number: 931

Backtrace:

File: /home1/biognosy/skmlhometuitions.in/application/controllers/Blogs.php
Line: 234
Function: view

File: /home1/biognosy/skmlhometuitions.in/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

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Comparisons in JavaScript | Post Details - SKML Home Tuitions
Comparisons in JavaScript
Nov 25, 2020 14:14 1 Comments DotNet PARTH

                                   Comparisons in JavaScript

 

  • Greater/less than: a > b, a < b.
  • Greater/less than or equals: a >= b, a <= b.
  • Equals: a == b, please note the double equality sign == means the equality test, while a single one a = b means an assignment.
  • Not equals. In JavaScript it’s written as a != b.

In this article we’ll learn more about different types of comparisons, how JavaScript makes them, including important peculiarities.

At the end you’ll find a good recipe to avoid “JavaScript quirks”-related issues.

Boolean is the result

All comparison operators return a Boolean value:

  • true – means “yes”, “correct” or “the truth”.
  • false – means “no”, “wrong” or “not the truth”.

For example:

alert( 2 > 1 );  // true (correct)

alert( 2 == 1 ); // false (wrong)

alert( 2 != 1 ); // true (correct)

A comparison result can be assigned to a variable, just like any value:

let result = 5 > 4; // assign the result of the comparison

alert( result ); // true

String comparison

To see whether a string is greater than another, JavaScript uses the so-called “dictionary” or “lexicographical” order.

In other words, strings are compared letter-by-letter.

For example:

alert( 'Z' > 'A' ); // true

alert( 'Glow' > 'Glee' ); // true

alert( 'Bee' > 'Be' ); // true

The algorithm to compare two strings is simple:

  1. Compare the first character of both strings.
  2. If the first character from the first string is greater (or less) than the other string’s, then the first string is greater (or less) than the second.
  3. Otherwise, if both strings’ first characters are the same, compare the second characters the same way.
  4. Repeat until the end of either string.
  5. If both strings end at the same length, then they are equal. Otherwise, the longer string is greater.

In the first example above, the comparison 'Z' > 'A' gets to a result at the first step.

The second comparison 'Glow' and 'Glee' needs more steps as strings are compared character-by-character:

  • G is the same as G.
  • l is the same as l.
  • o is greater than e. Stop here. The first string is greater.

 

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