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...
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....
I just found that in the last Chrome 42 and FF 37.0.2 this lines of code are perfectly legal  "use strict"; var o = { p: 1, p: 2 };   (copy-pasted from MDN )  In IE 10-11 and Opera 28.0.1750 it throws error as expected.  In the same time,   a...
Tested some js code in Chrome Dev Console and I'm a bit confused.  I know that in strict mode functions that are not methods of an object when referred to this keyword should receive undefined instead of global object.  function test(){     "...
I'm trying to learn to do object oriented programming in JavaScript and getting JSLint strict violations. I understand that I'm using this in a non-global context (or something to that effect...), but I don't know how to do it properly. H...
Let's say we have this script.  var apple = {     type: "macintosh",     color: "red",     getInfo: function () {         return this.color + ' ' + this.type + ' apple';     }     ///more functions here.... }   How...
From MDN article about strict mode:     First, strict mode makes it impossible to accidentally create global   variables. In normal JavaScript mistyping a variable in an assignment   creates a new property on the global object and continues to "w...
Update  For clarity: @FelixKing: Yes, I expected this to still be undefined when calling window.foo(), and here's why: since, in JavaScript:  function foo() {     console.log('I am a function'); }   Is (almost) the same thing as:  var foo...

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