Javascript booleans reference
Javascript build-in Boolean object reference.
Create booleans:
To create an object: | new Boolean(value) |
You uses the new keyword to create an object that contains a primitive boolean. | |
To use as a function: | Boolean(value]) |
When the Boolean object is used as a function the return will be a primitive boolean. | |
value: | An absent value argument results in boolean false. |
An example of using the new Number(string):
|
General information about the object member types:
- Prototype created methods, properties or constants can only be used on instances of an object or on a primitive datatype.
- Constructor created methods, properties or constants can NOT be used on instances of an object or on a primitive datatype.
Prototype Methods:
Syntax: | toString() |
Returns the string representation of the object which is a primitive string of either 'true' or 'false'. | |
Return value: | The primitive string of the boolean value ('true' or 'false'). |
Prototype Properties:
Syntax: | Boolean.prototype.constructor |
This property of the Bollean.prototype holds the reference back to the Boolean object. | |
Important note: | This is the same as the constructor property of an instantiated object |
Constructor (Boolean) Properties:
Syntax: | Boolean.constructor |
The constructor property is a reference to the function that will be invoked to create a Boolean object. |
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