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Answers for "Iterate Through an Array with a For Loop"

Javascript
30

javascript loop through array

var data = [1, 2, 3, 4, 5, 6];

// traditional for loop
for(let i=0; i<=data.length; i++) {
  console.log(data[i])  // 1 2 3 4 5 6
}

// using for...of
for(let i of data) {
	console.log(i) // 1 2 3 4 5 6
}

// using for...in
for(let i in data) {
  	console.log(i) // Prints indices for array elements
	console.log(data[i]) // 1 2 3 4 5 6
}

// using forEach
data.forEach((i) => {
  console.log(i) // 1 2 3 4 5 6
})
// NOTE ->  forEach method is about 95% slower than the traditional for loop

// using map
data.map((i) => {
  console.log(i) // 1 2 3 4 5 6
})
Posted by: Guest on December-18-2020
7

iterate through array javascript

const array = ["one", "two", "three"]
array.forEach(function (item, index) {
  console.log(item, index);
});
Posted by: Guest on May-31-2020
1

Iterate Through All an Array’s Items Using For Loops

function filteredArray(arr, elem) {
  let newArr = [];
  // change code below this line

  for (let i = 0; i < arr.length; i++) {
    if (arr[i].indexOf(elem) == -1) {
      //Checks every parameter for the element and if is NOT there continues the code
      newArr.push(arr[i]); //Inserts the element of the array in the new filtered array
    }
  }

  // change code above this line
  return newArr;
}
// change code here to test different cases:
console.log(filteredArray([[3, 2, 3], [1, 6, 3], [3, 13, 26], [19, 3, 9]], 3));
Posted by: Guest on April-22-2021
1

Iterate Through an Array with a For Loop

var arr = [10, 9, 8, 7, 6];
for (var i = 0; i < arr.length; i++) {
   console.log(arr[i]);
}
Posted by: Guest on May-16-2021
1

how to loop through array of numbers in javascript

let numbers = [1,2,3,4,5];
let numbersLength = numbers.length;
for ( let i = 0; i < numbersLength; i++) {
    console.log (numbers[i]);
}
Posted by: Guest on March-24-2020
1

Iterate Through an Array with a For Loop

var arr = [10, 9, 8, 7, 6];
for (var i = 0; i < arr.length; i++) {
   console.log(arr[i]);
}
Posted by: Guest on December-22-2020

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