JavaScript Boolean (Boolean) object related knowledge and usage

Boolean (Boolean) objects are used to convert non-Boolean values ​​into Boolean values ​​(true or false). This article will explain some properties.

Create a Boolean object

The Boolean object represents two values: "true" or "false"

The following code defines a Boolean object named myBoolean:

var myBoolean=new Boolean();

If the Boolean object has no initial value or its value is:

0
-0
null
""
false
undefined
NaN

Then the value of the object is false. Otherwise, its value is true (even when the variable value is the string "false")!

This article briefly explains the related properties and creation of Boolean. For more learning materials, please pay attention to the php Chinese website.

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