Answers for "use indexof in array javascript"

9

javascript indexOf object value in array

// Get index of object with specific value in array
const needle = 3; // needle
const haystack = [{ id: 1 }, { id: 2 }, { id: 3 }]; // haystack
const index = haystack.findIndex(item => item.id === needle);
Posted by: Guest on September-23-2020
7

js get index of item in array

array.indexOf("item");
Posted by: Guest on May-13-2020
0

get index of element in array javascript

var scores = [10, 20, 30, 10, 40, 20];
console.log(scores.indexOf(30)); // 2
console.log(scores.indexOf(50)); // -1
Posted by: Guest on November-18-2020
2

access index of array javascript

let first = fruits[0]
// Apple

let last = fruits[fruits.length - 1]
// Banana
Posted by: Guest on February-17-2020

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