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paulodutra/indexof.js

Created June 28, 2021 17:22
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Antes da ES7, para verificar se um determinado elemento se encontra em um array, era utilizado o indexOf e caso o mesmo não existisse o valor retornado é igual a -1.
Raw
indexof.js
const arr = [1, 2, 3];
console.log(arr.indexOf(3) > - 1);
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