How to add two variables in javascript

Javascript method to add two variables: 1. Use the " " operator, the syntax is "x y", which means that the variable x and the variable y are added together; 2. Use the "=" operator, The syntax is "x = y", which means that variable x and variable y are added together and the result is assigned to variable x.

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

In javascript, you can use the " " or " =" operator to implement addition.

Operator	Description	Example
	Addition Operator	x y means calculating the sum of x plus y
=	Perform the addition operation first, and then assign the result to the left side of the operator Variable	x = y is equivalent to x = x y

Example:

var x = 10, y = 5, a;
a=x + y;
x+=y;
console.log(a);
console.log(x);
a=x + y;
console.log(a);

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