javascript foreach index
users.forEach((user, index)=>{
console.log(index); // Prints the index at which the loop is currently at
});
javascript foreach index
users.forEach((user, index)=>{
console.log(index); // Prints the index at which the loop is currently at
});
foreach jas
const array1 = ['a', 'b', 'c'];
array1.forEach(element => console.log(element));
forEach
const arraySparse = [1,3,,7]
let numCallbackRuns = 0
arraySparse.forEach((element) => {
console.log(element)
numCallbackRuns++
})
console.log("numCallbackRuns: ", numCallbackRuns)
// 1
// 3
// 7
// numCallbackRuns: 3
// comment: as you can see the missing value between 3 and 7 didn't invoke callback function.
js get index from foreach
var myArray = [123, 15, 187, 32];
myArray.forEach(function (value, i) {
console.log('%d: %s', i, value);
});
// Outputs:
// 0: 123
// 1: 15
// 2: 187
// 3: 32
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