CODEWITHSUNDEEP
javascriptnode.jsobject
justlead
justlead

Reputation: 21

How can I get index of an object property in javascript?

var playerParametrs = {
    "blemishes" : 0,
    "Facial_Hair" : 0,
    "ChinShape" : 0, 
    "NeckWidth" : 0
}

How can I get the index of a property? Like, for instance, indexOf("blemishes") is 0.

Upvotes: 1

Views: 6478

Answers (5)

Tanjin Alam
Tanjin Alam

Reputation: 2476

let index = playerParametrs.findIndex((val, index) =>
  Object.keys(playerParametrs[index])[0] == 'blemishes'
);

this will return the index of the match property here index = 0

Upvotes: 0

Mohammed naji
Mohammed naji

Reputation: 1102

you can do this 

const keys = Object.keys(playerParametrs);
const requiredIndex = keys.indexOf('whateveryouwant');

Upvotes: 3

Adam Svestka
Adam Svestka

Reputation: 112

Object properties don't have indexes. You'd have to turn it into an array eg.

var arr = Object.entries(playerParametrs); // [["blemishes", 0], ["Facial_Hair", 0], ["ChinShape", 0], ["NeckWidth", 0]]

Then you can use a higher array function to find the index of "blemishes":

arr.findIndex(e => e[0] === "blemishes");  // 0

Note that the properties will always be in the order they were inserted in.

Upvotes: 3

franklylately
franklylately

Reputation: 1183

There isn't a need to access the index, objects store and access their information by key:value pairs. You can input them in any order and they are accessed by the key.

If you are trying to use the value:

if (playerParametrs.Facial_Hair === 0) {
  // do something
}

If you're trying to update the value:

playerParametrs.Facial_Hair = 1;

Upvotes: 0

Marcos Casagrande
Marcos Casagrande

Reputation: 40424

That's a simple object, what you want is just the property value, not the index. You access either using . or [].

Check: Property accessors

console.log(playerParametrs.Facial_Hair); // 0
console.log(playerParametrs["Facial_Hair"]); // 0

Upvotes: 1

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