Predicate that returns true for boolean values.
npm install is-boolean
var isBoolean = require('is-boolean');
console.log(isBoolean(false)); // true
console.log(isBoolean(true)); // true
console.log(isBoolean(new Boolean(1))); // true
console.log(isBoolean(!!'foo')); // true
console.log(isBoolean(!'foo')); // true
console.log(isBoolean('')); // false
console.log(isBoolean([])); // false
console.log(isBoolean(0)); // false
console.log(isBoolean(null)); // false
console.log(isBoolean(undefined)); // false
console.log(isBoolean(1)); // false
console.log(isBoolean({})); // false
console.log(isBoolean(function() {})); // false
console.log(isBoolean(/foo/gi)); // false
console.log(isBoolean(NaN)); // false
MIT
FAQs
Predicate that returns true for "boolean" values.
The npm package is-boolean receives a total of 18 weekly downloads. As such, is-boolean popularity was classified as not popular.
We found that is-boolean demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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