Answers for "js obj contains key"

how to check if object has key javascript

myObj.hasOwnProperty('key') // it checks object for particular key and not on prototype

Posted by: Guest on March-28-2020

js object contain key

if ('key' in myObj)
// better
if (!myObj.hasOwnProperty('key'))

Posted by: Guest on December-28-2020

object keys includes some key

var keyExistsOn = (o, k) => k.split(".").reduce((a, c) => a.hasOwnProperty(c) ? a[c] || 1 : false, Object.assign({}, o)) === false ? false : true;

Posted by: Guest on February-04-2021

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