Top "Declaration" questions

Define global variable in a JavaScript function

Is it possible to define a global variable in a JavaScript function? I want use the trailimage variable (declared in …

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What’s the difference between "Array()" and "[]" while declaring a JavaScript array?

What's the real difference between declaring an array like this: var myArray = new Array(); and var myArray = [];

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How to declare variable and use it in the same Oracle SQL script?

I want to write reusable code and need to declare some variables at the beginning and reuse them in the …

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How to initialize a vector in C++

I want to initialize a vector like we do in case of an array. Example int vv[2] = {12, 43}; But when I …

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What is the difference between a definition and a declaration?

The meaning of both eludes me.

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What is an 'undeclared identifier' error and how do I fix it?

What are undeclared identifier errors? What are common causes and how do I fix them? Example error texts: For the …

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Initializing multiple variables to the same value in Java

I'm looking for a clean and efficient method of declaring multiple variables of the same type and of the same …

java variables initialization declaration

Declaring multiple variables in JavaScript

In JavaScript, it is possible to declare multiple variables like this: var variable1 = "Hello, World!"; var variable2 = "Testing..."; var variable3 = 42; ...…

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Why is volatile needed in C?

Why is volatile needed in C? What is it used for? What will it do?

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More elegant way of declaring multiple variables at the same time

To declare multiple variables at the "same time" I would do: a, b = True, False But if I had to …

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