I'm not familiar with ECMAScript 6 yet. I've just cloned the React Starter Kit repo, which uses ES6 for application code. I was surprised to see that the linter is configured to forbid occurences of the use strict directive, which I thought...
Similar, but not the same as, How to enable ECMAScript "use strict" globally?  I have bought JavaScript Patterns and it recommends enabling use strict. Adding it to the two dozen javascript files would be a bit of a chore, so enabling it glob...
John Resig wrote:     Finally, a long-standing (and very annoying) bug has been resolved: Cases where null or undefined is coerced into becoming the global object. Strict mode now prevents this from happening and throws an exception instead.      (fu...
I have a project with literally hundreds of JavaScript source files. I am wondering what is the best way to enable the strict mode for the project? I understand the consequences of this action and I am only looking for advice regarding the deployemen...
I get the basic idea about this not being in a method when in strict mode outlined here, but it gets a bit erudite, to be honest. So, in more prosaic terms:  I have a handler like so:  $('.myClass').one('keyup', function() {     var $...
Update:  Perhaps the way the function is called is to blame, so here's to it:     2 JS files  Main.js: self invoking (non-strict) function that adds an event listener for the '(on)load' event. The callback calls a loader function, that...
"use strict";  if (true) {   function foo() {   } }   In PhpStorm this code shows an error:     Function statement not at top level of a program or function is prohibited   However, Chrome happily executes it, even in the debugger and without...
According the this http://caniuse.com/use-strict 'use strict' does not support in IE version 8/9.  My question is, Is it really safe to use 'use strict' in IE 8/9 or browsers that its not compatible with? Will it break my code?...
Is it possible in java script to explicitly declare array to be an array of int(or any other type)?  something like var arr: Array(int) would be nice......
I am interested in switching my Flow code to strict type checking, but I have some low-level utility functions that deal with Objects generically, such as:  // @flow strict  const hasKey = (o: Object): (string => boolean) =>   Object.prototype....

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