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Rollback to Revision 27

edited Jul 5, 2022 at 13:59

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What does "use strict" do in JavaScript, and what is the reasoning behind it?

Recently, I ran some of my JavaScript code through Crockford's JSLint, and it gave me thisthe following error:

Problem at line 1 character 1: Missing "use strict" statement.

WhatDoing some searching, I realized that some people add "use strict"; into their JavaScript code. Once I added the statement, the error stopped appearing. Unfortunately, Google did not reveal much of the history behind this string statement. Certainly it must have something to do with how the JavaScript is interpreted by the browser, but I have no idea what the effect would be.

So what is "use strict"; all about, what does it imply, and is it still relevant?

Do modernany of the current browsers supportrespond to the "use strict"; string or is it for future use?

What does "use strict" do?

JSLint gave me this error:

Problem at line 1 character 1: Missing "use strict" statement.

What is "use strict";? Do modern browsers support it?

What does "use strict" do in JavaScript, and what is the reasoning behind it?

Recently, I ran some of my JavaScript code through Crockford's JSLint, and it gave the following error:

Problem at line 1 character 1: Missing "use strict" statement.

Doing some searching, I realized that some people add "use strict"; into their JavaScript code. Once I added the statement, the error stopped appearing. Unfortunately, Google did not reveal much of the history behind this string statement. Certainly it must have something to do with how the JavaScript is interpreted by the browser, but I have no idea what the effect would be.

So what is "use strict"; all about, what does it imply, and is it still relevant?

Do any of the current browsers respond to the "use strict"; string or is it for future use?

Shorten for quicker reading.

edited Jul 5, 2022 at 7:33

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What does "use strict" do in JavaScript, and what is the reasoning behind it?

Recently, I ran some of my JavaScript code through Crockford's JSLint, and it gave the followingme this error:

Problem at line 1 character 1: Missing "use strict" statement.

Doing some searching, I realized that some people add "use strict"; into their JavaScript code. Once I added the statement, the error stopped appearing. Unfortunately, Google did not reveal much of the history behind this string statement. Certainly it must have something to do with how the JavaScript is interpreted by the browser, but I have no idea what the effect would be.

So whatWhat is "use strict"; all about, what does it imply, and is it still relevant?

Do any of the currentmodern browsers respond to the "use strict"; string or issupport it for future use?

What does "use strict" do in JavaScript, and what is the reasoning behind it?

Recently, I ran some of my JavaScript code through Crockford's JSLint, and it gave the following error:

Problem at line 1 character 1: Missing "use strict" statement.

Doing some searching, I realized that some people add "use strict"; into their JavaScript code. Once I added the statement, the error stopped appearing. Unfortunately, Google did not reveal much of the history behind this string statement. Certainly it must have something to do with how the JavaScript is interpreted by the browser, but I have no idea what the effect would be.

So what is "use strict"; all about, what does it imply, and is it still relevant?

Do any of the current browsers respond to the "use strict"; string or is it for future use?

What does "use strict" do?

JSLint gave me this error:

Problem at line 1 character 1: Missing "use strict" statement.

What is "use strict";? Do modern browsers support it?

Post Reopened by DarthJDG, Kami, Narendra Jadhav, SpiritCrusher, Andrii Omelchenko

occurred Apr 25, 2018 at 15:36

Post Closed as "Needs more focus" by Samuel Liew

occurred Apr 25, 2018 at 12:01

Rollback to Revision 19

edited Jan 23, 2017 at 1:30

97.9k
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Recently, I ran some of my JavaScript code through Crockford's JSLint, and it gave the following error:

Problem at line 1 character 1: Missing "use strict" statement.

Doing some searching, I realized that some people add "use strict"; into their JavaScript code. Once I added the statement, the error stopped appearing. Unfortunately, Google did not reveal much of the history behind this string statement. Certainly, it must have something to do with how the JavaScript is interpreted by the browser, but I have no idea what the effect would be.

So what is "use strict"; all about, what does it imply, and is it still relevant?

Do any of the current browsers respond to the "use strict"; string or is it for future use?

Recently, I ran some of my JavaScript code through Crockford's JSLint, and it gave the following error:

Problem at line 1 character 1: Missing "use strict" statement.

Doing some searching, I realized that some people add "use strict"; into their JavaScript code. Once I added the statement, the error stopped appearing. Unfortunately, Google did not reveal much of the history behind this string statement. Certainly, it must have something to do with how the JavaScript is interpreted by the browser, but I have no idea what the effect would be.

So what is "use strict"; all about, what does it imply, and is it still relevant?

Do any of the current browsers respond to the "use strict"; string or is it for future use?

Recently, I ran some of my JavaScript code through Crockford's JSLint, and it gave the following error:

Problem at line 1 character 1: Missing "use strict" statement.

Doing some searching, I realized that some people add "use strict"; into their JavaScript code. Once I added the statement, the error stopped appearing. Unfortunately, Google did not reveal much of the history behind this string statement. Certainly it must have something to do with how the JavaScript is interpreted by the browser, but I have no idea what the effect would be.

So what is "use strict"; all about, what does it imply, and is it still relevant?

Do any of the current browsers respond to the "use strict"; string or is it for future use?

added 1 character in body

edited Dec 21, 2016 at 11:06

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Rollback to Revision 23

edited Jul 24, 2016 at 18:59

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Attempted to make the title more concise

edited Jul 22, 2016 at 15:32

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Rollback to Revision 21

edited Feb 15, 2016 at 14:59

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For contesting this edit, go to the meta discussion http://meta.stackoverflow.com/questions/316884/should-we-add-links-between-duplicate-questions-in-different-languages

edited Feb 15, 2016 at 8:59

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Rollback to Revision 19

edited Feb 15, 2016 at 4:37

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added 164 characters in body

edited Feb 15, 2016 at 2:12

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Burninating [crockford] per http://meta.stackoverflow.com/q/253760/359284

edited Feb 20, 2015 at 1:38

Kevin Brown-Silva

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Rollback to Revision 16

edited Dec 15, 2014 at 15:26

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deleted 8 characters in body

edited Dec 15, 2014 at 14:52

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Rollback to Revision 12

edited Jun 27, 2014 at 2:53

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Rollback to Revision 13

edited Jun 27, 2014 at 2:52

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edited tags

edited Jun 17, 2014 at 1:21

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Rollback to Revision 9

edited Jun 17, 2014 at 1:21

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Question Protected by Mayank K. Swami

occurred Jun 10, 2013 at 5:02

use-strict tag

edited Oct 30, 2012 at 5:36

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removed thanks

edit approved Aug 10, 2012 at 12:05

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Rollback to Revision 8

edited May 9, 2012 at 15:13

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Rollback to Revision 7

edited May 4, 2012 at 15:54

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Rollback to Revision 6

edited Apr 3, 2012 at 15:46

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