declare « global « Javascript Data Type Q&A

1. How to declare a global variable in a .js file    stackoverflow.com

I need a few global variables that i need in all .js files. For eg. consider the following 4 files 1) global.js
2) js1.js
3) js2.js
4) js3.js Is there a ...

2. How to declare global var in javascript and HTML?    stackoverflow.com

How to declare a variable, I think global, the way I declare in an html file and then use it in a js file (included by <script> tags)?

3. Why is the global variable not being changed in certain circumstances in a function if you don't declare it with var or it's not an argument?    stackoverflow.com

ECMAScript is pretty straightforward about var. If you don't use var inside a function to declare a variable you assign to you assign to the global scope. This happens because of ...

4. why variables declare before functions in Javascript    stackoverflow.com

I was looking for calculator codes on net and I discovered code like the following. But i have a question in my mind. Why did the programmer declare the variable before creating ...

5. Declaring variables without var keyword    stackoverflow.com

At w3schools there is written: If you declare a variable, without using "var", the variable always becomes GLOBAL. Is it useful to declare global variable inside the function? I can imagine to declare ...

6. Can we declare global variable in QML file?    stackoverflow.com

I want to do something similer to following code:

//test.qml
import QtQuick 1.0
Item 
{
    var globalforJs =10;

    function increment() // JavaScript function
    ...