How to convert string to boolean JavaScript
In this shot, we will cover how to convert a string into its boolean representation.
The easiest way to convert string to boolean is to compare the string with 'true':
let myBool = (myString === 'true');
For a more case insensitive approach, try:
let myBool = (myString.toLowerCase() === 'true');
However, toLowerCase() will throw an error if myString is null or undefined.
Remember, all other strings that are not
'true'will be converted tofalse, e.g.,('Test'.toLowerCase() === 'true')evaluates tofalse.
we can also use
!!for a string to boolean conversion.
Code
let myString = 'true';let myBool = (myString.toLowerCase() === 'true'); // trueconsole.log(myBool);myString = 'False';myBool = (myString.toLowerCase() === 'true'); // falseconsole.log(myBool);myString = 'Test';myBool = (myString.toLowerCase() === 'true'); // falseconsole.log(myBool);
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