This question already has an answer here:                           JavaScript closure inside loops – simple practical example                                      43 answers                                     I am running an event loop of th...

I've heard this quite a few times. Are JavaScript loops really faster when counting backward? If so, why? I've seen a few test suite examples showing that reversed loops are quicker, but I can't find any explanation as to why!  I'm...

Just a quick question about the scoping of JavaScript variables.  Why does the alert() function print the value of i instead of returning undefined?  $(document).ready(function () {     for(var i = 0; i < 10; i += 1){     }       alert("What...

I have code like the following:  function test(obj) {      if(//some conditon) {         obj.onload();     }else{         obj.onerror();     } }   for(var i=0;i<4;i++){         test({         onload:function(e){                       //some code t...

var path;  for (var i = 0, c = paths.length; i < c; i++) {     path = paths[i];      fs.lstat(path, function (error, stat)     {         console.log(path); // this outputs always the last element     }); }   How can I access the path variable, tha...

I have two multidimensional arrays:  first is something like (['one','one','three'],['four','five',five'],['one','one','one'])  and the second one is like this (['one','o...

Now i got this second problem using d3.js that i cannot solve by my own. I got a dynamic array "path" which length always changes when i click on. Then i got a "text" variable at a starting position on the svg (112, 490). With the hel...

I am trying to write a basic javascript function to find the longest word in a string and log it's length.  So far I have:   function findLongestWord(str) {   var words = [];   var longest = [];   words.push(str.split(" "));   for(var i =...

var page = require('webpage').create(); var filepath = "/home/abc/" + "abc.html"; //create path to charts.html     for (i = 0; i < 3; i++) { // make three attempts     console.log("hi")     page.open(filepath, funct...

Since i += i is an abbreviation for i = i + i, the following code  for (var i = 0; i<=10; i++) { console.log(i += i) }   should output:  1. 0, because  0 += 0 + 0 (i = 0) 2. 2, because  0 += 1 + 1 (i = 2) 3. 6, because  2 += 2 + 2 (i = 6) 4. 12, b...