is there a way to join 2 NodeLists returned by 2 calls of document.getElementsByTagName?  Say, I have the following code  var inputs = documentElement.getElementsByTagName('input'); var selects = document.getElementsByTagName('select...
So, I have this object containing country names as keys and the values are arrays with some cities. I want to get all the cities in one array, without the countries. Here's how I go about it and can't understand why it isn't working:  var...
I have a JavaScript Object and I'm sure the value of any key is an array (even empty in some case):  {key1:["a","b","c"],key2:["d","e","f"],key3:...}   Aside from using Underscore, is there any way...
I'm not a veteran of JavaScript and I have a little problem :  In an AngularJS controller, I get 2 arrays from a WebService of the form [{"id":"1", "name":"aname1"}, {"id":"2", "name":"a...
I've got a problem, regarding gulp. I decided to automate the process of how the source and styles are compiled into a single file, so I decided to use gulp for that purpose. However, it doesn't want to overwrite the application.js file that...
I have this code which works good for this array: ['45', '30', '50', '1'].   function penalty(a_list) {   return a_list.sort((a, b) => a - b).join(''); }   for example: given that a_list is ['45', &#...
function whatTheHeck(obj){   var arr = []    for(o in obj){     arr.concat(["what"])   }    return arr }  whatTheHeck({"one":1, "two": 2})   The concat function completely fails to do anything. But if I put a breakpoint on tha...
I imagine this is similar to array padding, but I wonder if it can be simplified at all.  var arr = [1,2,3],     x   = 5;  for (var i=0; i<x; i++) {   arr.push(x); }  console.log(arr); //=> [1, 2, 3, 5, 5, 5, 5, 5]   Is there any way to do this...
So I installed npm using npm install uglify-js  I run a command which is:  cat file1.js file2.js .. fileN.js | uglifyjs -o files.min.js   and I get this error:  WARN: ERROR: Unexpected token eof «undefined», expected punc «,» [-:630,15]  /usr/loc...
To minimize the number of requests made to my server and improve load time, I was thinking about concatenating all my JS Files, including vendor js files like angular, jquery-ui, ...  It's a common practice to do this, but I often see websites th...

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