What is the easiest way to insert hyphens in javascript?  I have a phone number eg.1234567890  while displaying in the front end, I have to display it as 123-456-7890 using javascript.  what is the simplest and the quickest way to achieve this?  Than...
I hope that one of you experts can help me with a problem in datepicker.  I have a page with the following fields  date, week, item number, description, price  I can get the date picker to work for date and week but only if I assign datepicker to eac...
I have problems using the insert() function of the d3 visualization library. Better to say I do not understand how to use the "before selector". I red the examples here and here, but this dod not help.  I create an svg element and append an...
I have a Mongo collection that I'm trying to insert multiple documents into, as below:  db.collection('properties').insertMany(docs)   .catch(err => console.log(err))   .then((err, result) => {     console.log(err);     console.log(...
My html page contain a embedded image (png) that I like to insert into the excel file dynamically. I tried below that created the excel file with the name I like and a worksheet name as well * though the name of worksheet is same as file name, not su...
I'm new in JS, can't find solution to do something like that  var arr = [0]; var elem = [1, 2, 3]; ??? console.log(arr); // shows [0, [1, 2, 3]];   I've tried with .push(elem), JS decides that I passed array of values (not a single one),...
I am making a text-based online game, in my game, there is a battle system. After defeating the enemy you can be awarded a badge if you do not already have said badge. However, for some strange reason that I can not wrap my head around, the badge is...
<script type="text/javascript" language="javascript">  function addNewRow()  {     var table = document.getElementById("table1");     var tr = table.insertRow();     var td = tr.insertCell();     td.innerHTML= "a"...
I have an array with 3 cells.At the first cell i have a textarea where you can insert the url of an image.At the second cell i have a button which when you click the image display at the third cell where i have a div to display the image.The question...
I have an list of unknown number of LI elements. What I want to do is to insert another LI every a certain number of LI.   That is, in example, each 6 (this number could change) LI elemtns I want to insert another one. Is there a way to do this?  Tha...

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