Answers for "javascript iterate through list"

32

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
48

javascript code to loop through array

var colors = ["red","blue","green"];
for (var i = 0; i < colors.length; i++) {
    console.log(colors[i]);
}
Posted by: Guest on July-22-2019
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
5

iterate through list javascript

const array = ["hello", "world"];

for (item of array) {
	//DO THIS
}
Posted by: Guest on May-24-2020
1

js loop through array

// ES6 for-of statement
for (const color of colors){
    console.log(color);
}

// Array.prototype.forEach
const array = ["one", "two", "three"]
array.forEach(function (item, index) {
  console.log(item, index);
});

// Sequential for loop
for (var i = 0; i < arrayLength; i++) {
    console.log(myStringArray[i]);
    //Do something
}
Posted by: Guest on July-27-2020
0

loop over an array

let fruits = ['Apple', 'Banana'];

fruits.forEach(function(item, index, array) {
  console.log(item, index);
});
// Apple 0
// Banana 1
Posted by: Guest on November-22-2020

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