These are the 2 methods to calculate total amount based on object data:   Snippet 1     var shoppingCart = (function(){     function calculatePriceNow() {         return this.price * this.amount;     };     return {         calculatePrice : calculate...
I'm trying to figure out how to call a javascript function only when a checkbox is NOT checked.  here is my checkbox:  <input type="checkbox" id="icd" name="icd" value="icd" />   here is the name of the funct...
These codes are run on chrome devtool.  It seems like b.call(same as a.call.call) is calling the first argument, which is a function, then pass the second argument as this. If the first argument is not a function, then throw not a function error....
I have a JQuery function who add a Table in the JSP dynamically:  $('#add').click(function(event) {      event.preventDefault();  $('.tabela_procurador').before     ('<table id="tabela_nova' + i + '" class="...
var f = function(o){ return this+":"+o+"::"+(typeof this)+":"+(typeof o) }; f.call( "2", "2" ); // "2:2::object:string"  var f = function(o){ return this+":"+(typeof this)+":"+(typeof o)...
Learning JS this week.  Is it possible to use Math.random to return a random value in an array? Does that value be a string and still work?...
Using D3, I'm trying to implement a word wrap plugin for each quotation displayed from myData. The call function on the last line is that.   The problem is that it only works for the first quote. It makes the all other quotes not appear. I'm...
I am looking at the code to find out whether an object is an array on not, and I came across this answer.  The code is working fine, but I am not able to understand how it is performing a comparison with [object Array]   I tried to get the typeof Arr...
I'm studying from this site and came upon this question and answer:     Write a sum method which will work properly when invoked using either   syntax below.   console.log(sum(2,3));   // Outputs 5   console.log(sum(2)(3));  // Outputs 5   //answ...
The premise: what the correct charCodeAt(i : Int) performance would look like:  "test".charCodeAt(0) 116 "test".charCodeAt(1) 101 "test".charCodeAt(2) 115 "test".charCodeAt(3) 116 "test".charCodeAt(4) NaN   and...

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