UNPKG

component-type

Version:
44 lines (33 loc) 796 B
# component-type > Type assertions aka less-broken `typeof` ## Install ```sh npm install component-type ``` ## Usage ```js import type from 'component-type'; const date = new Date(); console.log(type(date)); //=> 'date' ``` ## API ```js type(new Date) === 'date' type({}) === 'object' type(null) === 'null' type(undefined) === 'undefined' type('hey') === 'string' type(true) === 'boolean' type(false) === 'boolean' type(12) === 'number' type(type) === 'function' type(/asdf/) === 'regexp' type((function(){ return arguments })()) === 'arguments' type([]) === 'array' type(document.createElement('div')) === 'element' type(NaN) === 'nan' type(new Error('Oh noes')) === 'error' type(new Buffer) === 'buffer' ``` It makes no guarantees about the correctness when fed untrusted user-input.