Answers for "forecah js"

javascript foreach

const avengers = ['thor', 'captain america', 'hulk'];
avengers.forEach((item, index)=>{
	console.log(index, item)
})

js foreach

var stringArray = ["first", "second"];

myArray.forEach((string, index) => {
  	var msg = "The string: " + string + " is in index of " + index; 
	console.log(msg);
	
	// Output:
	// The string: first is in index of 0
	// The string: second is in index of 1
});

foreach javascript

var items = ["item1", "item2", "item3"]
var copie = [];

items.forEach(function(item){
  copie.push(item);
});

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.

javascript foreach

arr.forEach(function callback(currentValue, index, array) {
    // tu iterador
}[, thisArg]);