JavaScript is_bool

Returns true if variable is a boolean

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function is_bool (mixed_var) {
    // Returns true if variable is a boolean  
    // 
    // version: 1109.2015
    // discuss at: http://phpjs.org/functions/is_bool    // +   original by: Onno Marsman
    // *     example 1: is_bool(false);
    // *     returns 1: true
    // *     example 2: is_bool(0);
    // *     returns 2: false    return (typeof mixed_var === 'boolean');
}

Examples

» Example 1

Running

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is_bool(false);

Should return

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true

» Example 2

Running

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is_bool(0);

Should return

1

false

Dependencies

No dependencies, you can use this function standalone.

Open syntax issues

php.js uses JsLint to help us keep our code consistent and prevent some common bugs.

Eventually we want all code to pass or at least take into consideration most fixes suggested by JsLint, following this JsLint configuration we’ve decided on.

Authors

Thanks to the following developers, you get to have is_bool goodness in JavaScript.

• Onno Marsman ( original )

Comments

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Use:

[CODE]
your_stuff('here');
[/CODE]

for proper code formatting
By submitting code here you are allowing us to use it in php.js hence dual licensing it under the MIT and GPL licenses

CoursesWeb
Apr 30th

  Hi,
For is_bool, i use:

function is_bool(obj) {
  return (obj === true || obj === false);
}

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