In this fiddle http://jsfiddle.net/mjmitche/6nar4/3/, if you drag, for example, the little blue box into the yellow box, then the big black box will turn pink. All of the 4 boxes along the left can be dragged into the boxes inside the black box.   At...
I have the following code:  c.m & 3 || (b |= 2,    65 <= a && 90 >= a ? a = 65 : 48 <= a && 57 >= a ? a = 48 : b & 1 ? 97 <= a && 122 >= a ? a = 65 : 197 == a || 229 == a ? b &= 5 : 192 <= a &...
I try to understand this one. It is an example from advanced javascript by John Resig.  function yell(n) {     return n > 0 ? yell(n-1) + "a" : "hiy"; } alert( yell(4) );   As a beginner I somehow would use a temporary variable to...
What I want to do is check if there is element in array, if it is, I want to increment counter. Compiler reports error when I do count++ but not when I do count + 1, and it increments correctly. Is it because count++ is operation and not an expressio...
I am trying to test the truthiness of an object property.  Whether it exists and has a value use that value and if it does not then add a default value to another object.   const initNetwork = ( setupObj ) => {     let obj = {};      obj = Object....
Doing this  const bool = true; const a = 2 + true ? 3 : 0; const b = 2 + false ? 3 : 0;   gives me a = 3 and b = 0. Why is the 2 + being ignored?...
I have an issue with the ternary operator in my component. I've created a function to check if Sun's up and return boolean:  dayTime() {   const time = new Date();   const sunrise = new Date(this.state.sunrise*1000);   const sunset = new Date...
Having some trouble with a nested ternary:  Brief:  Return: a string formatted as a list of names separated by commas except for the last two names, which should be separated by an ampersand.  Example input and output:  list([ {name: 'Bart'},...
Here is a simplified version of my code:  var cond = true; var res1 = "400" + cond ? "%" : "px"; var res2 = "400" + (cond ? "%" : "px");   the result is as follows:  res1 = "%"; res2 = "400%...

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