JavaScript Boolean Object
The Boolean object is used to
convert a non-Boolean value to a Boolean value (true or false).
Examples
Check Boolean value
Check if a Boolean object is true or false.
Complete Boolean Object Reference
For a complete reference of all the properties and methods that can be used with
the Boolean object, go to our
complete Boolean object reference.
The reference contains a brief description and examples of use for each
property and method!
Boolean Object
The Boolean object is an object wrapper for a Boolean value.
The Boolean object is used to
convert a non-Boolean value to a Boolean value (true or false).
We define a Boolean object with the new keyword. The following code line
defines a Boolean object called myBoolean:
var myBoolean=new Boolean();
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Note: If the Boolean object has no initial value or if it is 0, -0, null, "", false,
undefined,
or NaN, the object is set to false. Otherwise it is true (even with the string
"false")!
All the following lines of code create Boolean objects with an initial value
of false:
var myBoolean=new Boolean();
var myBoolean=new Boolean(0);
var myBoolean=new Boolean(null);
var myBoolean=new Boolean("");
var myBoolean=new Boolean(false);
var myBoolean=new Boolean(NaN);
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And all the following lines of code create Boolean objects with an initial value
of true:
var myBoolean=new Boolean(true);
var myBoolean=new Boolean("true");
var myBoolean=new Boolean("false");
var myBoolean=new Boolean("Richard");
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