findIndex of item in array of object where object property match [duplicate]

Question

I have an array of object as follow :

[ {label: "<p>Opacity | %<br/></p>", customRow: false, id: 0, items: Array(13)},
 {label: "Brand_hs_id", customRow: false, id: 0, items: Array(13)},
 {label: "<p>PPI |</p>", customRow: false, id: 0, items: Array(13)},
{label: "Brightness | %", customRow: false, id: 0, items: Array(13)
]

I want to findIndex of object where label value matches. for example if I pass the "Brightness | %" it should return 3.

I checked

const array1 = [5, 12, 8, 130, 44];

const isLargeNumber = (element) => element > 13;

console.log(array1.findIndex(isLargeNumber));
// expected output: 3

but not sure how to do it in array of objects .

The argument of the callback will be an object. Just access the property and compare it -> Working with objects - JavaScript | MDN — Andreas
– Andreas, Commented Jun 24, 2021 at 8:56
How much research effort is expected of Stack Overflow users? — Andreas
– Andreas, Commented Jun 24, 2021 at 9:00

AT-2017 · Accepted Answer · 2021-06-24 09:02:47Z

0

Try something like as follows:

let val = [{id:"1002", address:"usa"},
           {id:"1004", address:"canada"},
           {id:"1006", address:"sweden"}];
    
let index = val.findIndex(x => x.address === "canada");

console.log(index); //Here index will be returned

edited Jun 24, 2021 at 9:02

answered Jun 24, 2021 at 8:59

AT-2017

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2 Comments

onlit Over a year ago

Always use var, let, or const to avoid creating leaked global. Use strict mode to see these errors.

onlit Over a year ago

const should be used here, as you'll not be reassigning the values.

Prakash Harvani · Accepted Answer · 2021-06-24 09:00:02Z

-2

do it like this

const array1 = [{age:5}, {age:12},{age:8} , {age:130}, {age:44}];
const isLargeNumber = (element) => element.age > 13;

console.log(array1.findIndex(isLargeNumber));

answered Jun 24, 2021 at 9:00

Prakash Harvani

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