Linked Questions

Is there a way to use constants in JavaScript? If not, what's the common practice for specifying variables that are used as constants?

In another question, a user pointed out that the new keyword was dangerous to use and proposed a solution to object creation that did not use new. I didn't believe that was true, mostly because I've ...

I have been reading a lot of Javascript lately and I have been noticing that the whole file is wrapped like the following in the .js files to be imported. (function() { ... code ... })();...

I've been looking over the JavaScript reference on the Mozilla Developer Network, and I came across something called "strict mode". I read it over and I'm having trouble understanding what ...

I've seen posts regarding where to put the "use strict" line in a TypeScript code file. My question is, why have it at all? Since TypeScript is already a strongly typed language, what does "use ...

I'm trying to start playing an embedded youtube video by clicking an image. The idea is to have an image on top of a video, and when the image is clicked it fades out and starts playing the video. I'...

Following the question Extending String.prototype performance I am really intrigued, because just adding "use strict" to a String.prototype method improved performance 10 times. The explanation by ...

I spent hours just to find out that I misspelt the word .length as .lenght. It can run normally with no warning at all. Why...? I use 'use strict' and run on Node.js 10.13.0. Code: 'use strict';...

I don't find anything about my question here on MDC or the ECMAscript specifications. Probably somebody knows a more 'hacky' way to solve this. I'm calling "use strict" on every javascript file in my ...

I've found this post-What does "use strict" do in JavaScript, and what is the reasoning behind it? And what I'm understanding here is that I should use strict always. But I wonder, if it ...

What scope does the strict mode pragma have in ECMAScript5? "use strict"; I'd like to do this (mainly because JSLint doesn't complain about it): "use strict"; (function () { // my stuff here... }(...

I have read Crockford's JavaScript: The Good Parts and have used his validator JSLint. I am sometimes left wondering the justification behind his recommendations. Below is a list of examples I want ...

I never knew use strict to speed up runtime, however a simple use strict is making my benchmark substantially faster, and the slower one grossly slower (over twice as slow). What's going on? // // ...

Just curious whether there are any drawbacks to including: "compilerOptions": { "alwaysStrict": true, ... } Since it's false by default. Thoughts?

https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers.onerror states: Note that some/many error events do not trigger window.onerror, you have to listen for them specifically. Could ...