Given  let doAsynchronousStuff = () => {   return new Promise(resolve => {     setTimeout(() => {       resolve("abcdefg"[Math.floor(Math.random() * 7)])     }, Math.PI * 1 + Math.random())   })   .then(data => console.log(data))...
There are many situations in parsing user input where the user has the opportunity to add several optional flags to the input which should be accepted in any order. How can this be parsed with regex so that each flag will be in it's own capture g...
Suppose you have to write a program that will test all programs in search of one that completes a specific task. For example, consider this JavaScript function:  function find_truth(){     for(n=0;;++n){         try {             var fn = Function(st...
Is there a jQuery plugin or javascript library that supports a "genie" animation effect like the apple Mac OS X dock?  Bonus: Actionscript library? C/C++? .NET? Objective C?...
To avoid all standard-answers I could have Googled on, I will provide an example you all can attack at will.  C# and Java (and too many others) have with plenty of types some of ‘overflow’ behaviour I don’t like at all (e.g type.MaxValue + type...
Why do programming languages have a NaN value?  Math.floor('string');  //--> NaN   Why not just throw a TypeError?  TypeError: Expected number instead of string   The question is tagged both javascript and language-agnostic because JavaScr...
Consider the following code:   0.1 + 0.2 == 0.3  ->  false   0.1 + 0.2         ->  0.30000000000000004   Why do these inaccuracies happen?...
I have some code like this  var a = returnsABoolean(); var b = returnsABoolean();  if (!a || !b) {  } else {   doStuff(); }   How would I invert the test in the if-statement such that I can rewrite this as  var a = returnsABoolean(); var b = returnsA...
I quite often see on the Internet various complaints that other peoples examples of currying are not currying, but are actually just partial application.  I've not found a decent explanation of what partial application is, or how it differs from...
I have a rectangle and would like to:   Get a random point on one (any) of the sides. Get a random point on one (except for the previously picked) side.   My initial approach is to create arrays for each possible side.  var arr:Array = [[{x:0,y:0},...

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