Created
July 26, 2011 22:14
-
-
Save maxparm/1108210 to your computer and use it in GitHub Desktop.
JS - Boolean values in javascript conditions
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// Boolean Value | |
console.log('===== Boolean Value!'); | |
console.log( ( 1 ) ? 'true' : 'false' ); // true | |
console.log( ( '0' ) ? 'true' : 'false' ); // true | |
console.log( ( '1' ) ? 'true' : 'false' ); // true | |
console.log( ( [] ) ? 'true' : 'false' ); // true | |
console.log( ( {} ) ? 'true' : 'false' ); // true | |
console.log( ( '' ) ? 'true' : 'false' ); // false | |
console.log( ( 0 ) ? 'true' : 'false' ); // false | |
console.log( ( NaN ) ? 'true' : 'false' ); // false | |
console.log( ( undefined ) ? 'true' : 'false' ); // false | |
console.log( ( null ) ? 'true' : 'false' ); // false | |
// Comparison | |
console.log('===== Comparison'); | |
console.log( ( 1=='1' ) ? 'true' : 'false' ); // true | |
console.log( ( 1=='0' ) ? 'true' : 'false' ); // false | |
console.log( ( 0=='0' ) ? 'true' : 'false' ); // true | |
console.log( ( 1==='1' ) ? 'true' : 'false' ); // false | |
console.log( ( 1==='0' ) ? 'true' : 'false' ); // false | |
console.log( ( 0==='0' ) ? 'true' : 'false' ); // false | |
console.log( ( 0==='0' ) ? 'true' : 'false' ); // false | |
console.log( ( 12==(1+'2') ) ? 'true' : 'false' ); // true |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment