I don't quite understand the difference between the following two lines of code. In my code, the line with "apply" works the way I want it to, and the line with just regular push doesn't.   So what is really going on when both of thes...
I wanted to invoke a function using the javascript apply() method. This works fine if the function has no arguments. i.e.  function test() {   console.log(this); }  body = document.getElementsByTagName("body")[0]; // shortcut to body element...
In the CoffeeScript docs for array splicing, what is the purpose of the trailing , _ref?  CoffeeScript:  numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] numbers[3..6] = [-3, -4, -5, -6]   Compiles to:  var numbers, _ref; numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8...
Anyone knows why in javascript this works  m = Math.max m.apply(null, [1,2,3])   but this doesn't?  m = Math.max.apply m(null, [1,2,3])   It throws the exception:     TypeError: Function.prototype.apply was called on undefined, which is a undefin...
Are there any browser restrictions or any other issues that prevents me from doing:  fn.apply(this, arguments);   versus:  fn.apply(this, Array.prototype.slice.call(arguments));   I know that apply takes a "true" Array as second argument, but...
I'm reading the MDN Article on slice in JavaScript. I understand everything except the 2nd example in the section titled Array-Like Objects.  It says we can simplify the first example by making slice our own function as so:  var unboundSlice = Ar...
I am using Proxy to Proxy an object. The getter and setter work fine like expected. However, the apply method is never called.      var p = new Proxy({}, {     /* getter */     get(target, name) {         return target[name]     },     /* setter */...
Basically I want to instead of this...  app.get(routes.test, function(req, res, next){   actualRouteHandler(req, res, next) // Always returns a promise or throws.     .catch(function(err) {       next(err);     }); });   Have this:  app.get(routes.te...
I used this answer here to construct a new class instance by passing array arguments using the following code:  new ( Cls.bind.apply( Cls, arguments ) )();   But one of my arguments is an array and the values get lost during construction  You can che...

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