The toString()
method returns a string representing the specified Boolean object.
bool.toString()
A string representing the specified Boolean
object.
The Boolean
object overrides the toString
method of the Object
object; it does not inherit Object.prototype.toString()
. For Boolean
objects, the toString
method returns a string representation of the object.
JavaScript calls the toString()
method automatically when a Boolean
is to be represented as a text value or when a Boolean
is referred to in a string concatenation.
For Boolean
objects and values, the built-in toString()
method returns the string "true
" or "false
" depending on the value of the boolean object.
toString()
In the following code, flag.toString()
returns "true
":
var flag = new Boolean(true); var myVar = flag.toString();
Specification |
---|
ECMAScript (ECMA-262) The definition of 'Boolean.prototype.toString' in that specification. |
Desktop | ||||||
---|---|---|---|---|---|---|
toString |
1 | 12 | 1 | 3 | 4 | 1 |
Mobile | ||||||
---|---|---|---|---|---|---|
toString |
1 | 18 | 4 | 10.1 | 1 | 1.0 |
Server | |
---|---|
toString |
0.1.100 |
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://wiki.developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean/toString