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This article mainly explains "how javascript turns negative numbers into positive numbers". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how javascript turns negative numbers into positive numbers".

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

Javascript's method of turning negative numbers into positive numbers

Method 1: use the inversion operation

The inverse operator is a unary operator, also known as a unary subtraction operator.

Var a =-10 * var b =-a * console.log (b)

Method 2: use the abs () function to take the absolute value

The abs () method returns the absolute value of a number. The syntax is as follows:

Math.abs (x)

Return value: the absolute value of x. Returns NaN if x is not a number, and 0 if x is null.

Example:

Var a =-100th var b = Math.abs (a); console.log (b)

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