js for...of loop with index All In One

js for...of loop with index All In One

const ids = ['id1','id2','id3'];

for(const [index, value] of ids.entries()){
    console.log(index, value);
}

const ids = ['id1','id2','id3'];

for(const [index, value] of ids.entries()){
    console.log(index, value);
}
// 0 "id1"
// 1 "id2"
// 2 "id3"

ids.entries();
// Array Iterator {}__proto__: Array Iterator

for(const item of ids.entries()){
    console.log(item);
}
// (2) [0, "id1"]
// (2) [1, "id2"]
// (2) [2, "id3"]

https://reactgo.com/javascript-get-index-for-of-loop/

https://stackoverflow.com/questions/10179815/get-loop-counter-index-using-for-of-syntax-in-javascript

refs

js & for & for of & for in & forEach, break

https://www.cnblogs.com/xgqfrms/p/12021774.html

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