loop over javascript using foreach
const obj = {
name: 'Jean-Luc Picard',
rank: 'Captain'
};
// Prints "name Jean-Luc Picard" followed by "rank Captain"
Object.keys(obj).forEach(key => {
console.log(key, obj[key]);
});loop over javascript using foreach
const obj = {
name: 'Jean-Luc Picard',
rank: 'Captain'
};
// Prints "name Jean-Luc Picard" followed by "rank Captain"
Object.keys(obj).forEach(key => {
console.log(key, obj[key]);
});es6 forEach
const array1 = ['a', 'b', 'c'];
array1.forEach((element) => {
console.log(element)
});
// expected output: "a"
// expected output: "b"
// expected output: "c"javascript example of foreach loop
var colors = ["red", "blue", "green"];
colors.forEach(function(color) {
console.log(color);
});foreach loop javascript
const numList = [1, 2, 3];
numList.forEach((number) => {
console.log(number);
});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.for each
const array1 = ['a', 'b', 'c'];
array1.forEach(element => console.log(element));
// expected output: "a"
// expected output: "b"
// expected output: "c"Copyright © 2021 Codeinu
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