js for of array with index
for (const [index, value] of [1, 2, 3, 4, 5].entries()) {
console.log(index, value);
}js for of array with index
for (const [index, value] of [1, 2, 3, 4, 5].entries()) {
console.log(index, value);
}javasript array indexof
var array = [2, 9, 9];
array.indexOf(2); // 0
array.indexOf(7); // -1
array.indexOf(9, 2); // 2
array.indexOf(2, -1); // -1
array.indexOf(2, -3); // 0Copyright © 2021 Codeinu
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