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"));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"));indexOf by object key
var index = peoples.findIndex(p => p.attr1 == "john")js find index of object by value of property and return it's key
const index = Data.findIndex(item => item.name === 'John');Copyright © 2021 Codeinu
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