boobool

Convert a boolean from a string, keeping undefined and null values

• Parses "true" as true
• Parses "false" as false
• Case-insensitive
• Ignores leading and trailing whitespace
• Parses undefined and null as undefined
• Returns undefined when a boolean could not be found
• Configurable defaultValue (replaces undefined)

Installation

npm install boobool

Usage

parseBoolean(string[, {defaultValue}])

const boobool = require('boobool');

boobool('true');  //-> true
boobool(' TRUE ');  //-> true
boobool('false');  //-> false

boobool('yes');  //-> undefined
boobool('1');  //-> undefined
boobool('');  //-> undefined
boobool(null);  //-> undefined
boobool(undefined);  //-> undefined

Optionally, you can override the default value:

boobool('', {defaultValue: true});  //-> true