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The 'boolean' npm package is a simple utility that helps in converting various types of values to a boolean. It is particularly useful when dealing with values that are expected to be true or false but may come in different formats, such as strings, numbers, or even undefined.
Convert any value to a boolean
This feature allows you to convert various types of values, including strings, numbers, and null or undefined, to a strict boolean value. It is useful for ensuring that you are working with a true boolean in your logic.
const boolean = require('boolean');
console.log(boolean('true')); // true
console.log(boolean('false')); // false
console.log(boolean('1')); // true
console.log(boolean('0')); // false
console.log(boolean(1)); // true
console.log(boolean(0)); // false
console.log(boolean(undefined)); // false
console.log(boolean(null)); // false
console.log(boolean('yes')); // true
console.log(boolean('no')); // false
The 'to-bool' package is similar to 'boolean' in that it converts values to booleans. However, it may have different rules for conversion or additional/different features.
The 'boolify' package also converts values to booleans. It might offer a different API or conversion logic, which could make it more suitable for certain use cases compared to 'boolean'.
boolean converts lots of things to boolean.
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$ npm install boolean
First you need to add a reference to boolean in your application:
const boolean = require('boolean').default;
If you use TypeScript, use the following code instead:
import boolean from 'boolean';
To verify a value for its boolean value, call the boolean
function and provide the value in question as parameter.
console.log(boolean('true')); // => true
The boolean
function considers the following values to be equivalent to true
:
true
(boolean)'true'
(string)'TRUE'
(string)'t'
(string)'T'
(string)'yes'
(string)'YES'
(string)'y'
(string)'Y'
(string)'on'
(string)'ON'
(string)'1'
(string)1
(number)Please note that if you provide a string, it will be trimmed.
All other values, including undefined
and null
are considered to be false
.
To build this module use roboter.
$ npx roboter
FAQs
boolean converts lots of things to boolean.
The npm package boolean receives a total of 1,633,496 weekly downloads. As such, boolean popularity was classified as popular.
We found that boolean demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 5 open source maintainers collaborating on the project.
Did you know?
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