Answers for "find a key in object javascript"

17

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
7

how to find the key of an value in an object

function getKeyByValue(object, value) {
  return Object.keys(object).find(key => object[key] === value);
}


const map = {"first" : "1", "second" : "2"};
console.log(getKeyByValue(map,"2"));
Posted by: Guest on August-07-2020
4

js find key by value in object

Object.keys(object).find(key => object[key] === value)
Posted by: Guest on December-30-2020
4

typescript check if object has key

if ('key' in myObj)
Posted by: Guest on June-21-2020

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