Boolean() constructor
The Boolean()
constructor is used to create Boolean
objects.
Syntax
new Boolean() new Boolean(value)
Parameters
-
value
Optional -
The initial value of the
Boolean
object.
Examples
Creating Boolean
objects with an initial value of false
var bNoParam = new Boolean(); var bZero = new Boolean(0); var bNull = new Boolean(null); var bEmptyString = new Boolean(''); var bfalse = new Boolean(false);
Creating Boolean
objects with an initial value of true
var btrue = new Boolean(true); var btrueString = new Boolean('true'); var bfalseString = new Boolean('false'); var bSuLin = new Boolean('Su Lin'); var bArrayProto = new Boolean([]); var bObjProto = new Boolean({});
Specifications
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
Boolean |
1 |
12 |
1 |
3 |
4 |
1 |
1 |
18 |
4 |
10.1 |
1 |
1.0 |
See also
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean/Boolean