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js push if not exists

serhii_rb answered on January 31, 2022 Popularity 8/10 Helpfulness 10/10

answer js push if not exists

js push if not exists

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// ✅ With primitives
const arr1 = ['a', 'b', 'c', 'd'];
const value1 = 'e';

if (!arr1.includes(value1)) {
  arr1.push(value1);
}

// ✅ With Objects
const arr2 = [{id: 1}, {id: 2}];
const value2 = {id: 3};

const index = arr2.findIndex(object => object.id === value2.id);

if (index === -1) {
  arr2.push(value2);
}

Popularity 8/10 Helpfulness 10/10 Language javascript

Source: bobbyhadz.com

Tags: javascript not-exists push

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Contributed on Jan 31 2022

serhii_rb

0 Answers Avg Quality 2/10

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