Run results for: typeof 3 types using function

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0

Browser: Firefox 71

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Tests:

isString
function isString(s){ return s && typeof o === 'string' } let s = ""; let is = isString(s);
isArray
function isArray(a){ return Array.isArray(a); } let arr = []; let is = isArray(arr);
isObject
function isObject(o){ o && typeof o === 'string' } let obj = {}; let is = isObject(obj);