I'd like to call a function using an array as parameters:  const x = ['p0', 'p1', 'p2']; call_me(x[0], x[1], x[2]); // I don't like it  function call_me (param0, param1, param2 ) {   // ... }   Is there a better way...

I'm new to ajax and callback functions, please forgive me if i get the concepts all wrong.  Problem: Could i send a callbackfunction as a parameter to another function that will execute the callback?  function firstFunction(){     //some code...

Why does the following work:  function sum(a,b) { return a + b; } var result = sum.call(null,3,4);     // 7   Why is result defined? I am invoking sum as a method of null. But null is not an object and cannot have properties!  What is going on?...

I want to house a variable in a function This variable will change state depending on user interaction  function plan_state(current){     if (current != ''){      state = current;     }     else {      return state;     } }   when the doc loa...

I'm trying to write a simple log viewer using Qt4's WebKit port/implementation. My HTML code looks like this:  http://pastie.org/613296  More specifically, I'm trying to find out how to call the add_message() function which is defined in...

I have been testing some code lately trying to understand javascript a little bit better. Then I came across the call() function wich I can't get to understand well.  I have the following code:  function hi(){     console.log("hi"); }  va...

I'm working in my .js file.  When my function, mainPaginationClicked is called, I want it to also execute another function, rotateMessage.  rotateMessage is declared in the script tags of my html document.  Is there a way to call this function fr...

I know it works, but I don't know why and how. What are the mechanics?  // Parent constructor function Parent(name){   this.name = name || "The name property is empty"; }  // Child constructor function Child(name){   this.name = name; }...

I have some javascript that is supposed to run after the window loads but for some reason, it never runs.  Here's my code:  function setClasses(){         document.getElementsByClassName("gchoice_35_0")[0].onclick = sedanShow;         doc...

I just can't reach the function inside function using only HTML. How to call setLayout() using only HTML or is it able to call only in Javascript?  <button onclick="customize.setLayout('b.html');">Click Please</button>...