find the index of an element in an array javascript code example
Example 1: find index of object in array javascript
a = [
{prop1:"abc",prop2:"qwe"},
{prop1:"bnmb",prop2:"yutu"},
{prop1:"zxvz",prop2:"qwrq"}];
index = a.findIndex(x => x.prop2 ==="yutu");
console.log(index);
Example 2: how to find the index of a value in an array in javascript
var list = ["apple","banana","orange"]
var index_of_apple = list.indexOf("apple")
Example 3: js find index in list
let myList = ['foo', 'bar', 'qux'];
myList.indexOf('bar');
Example 4: index of value in array
var imageList = [
{value: 100},
{value: 200},
{value: 300},
{value: 400},
{value: 500}
];
var index = imageList.findIndex(img => img.value === 200);
Example 5: js array get index
var fruits = ["Banana", "Orange", "Apple", "Mango"];
return fruits.indexOf("Apple");
Example 6: how to get the index of an array in javascript
search = (arr, item) => { return arr.indexOf(item); }