split() array code example

Example 1: javascript array split chunk

const chunk = (arr, size) => arr.reduce((acc, e, i) => (i % size ? acc[acc.length - 1].push(e) : acc.push([e]), acc), []);

// Examples
chunk([1, 2, 3, 4, 5, 6, 7, 8], 3);     // [[1, 2, 3], [4, 5, 6], [7, 8]]
chunk([1, 2, 3, 4, 5, 6, 7, 8], 4);     // [[1, 2, 3, 4], [5, 6, 7, 8]]

Example 2: javascript split by comma

<script>
var names = 'Harry,John,Clark,Peter,Rohn,Alice';
var nameArr = names.split(',');
console.log(nameArr);
 
// Accessing individual values
alert(nameArr[0]); // Outputs: Harry
alert(nameArr[1]); // Outputs: John
alert(nameArr[nameArr.length - 1]); // Outputs: Alice
 
var str = 'Hello World!';
var chars = str.split('');
console.log();
 
// Accessing individual values
alert(chars[0]); // Outputs: H
alert(chars[1]); // Outputs: e
alert(chars[chars.length - 1]); // Outputs: !
</script>

Example 3: javascript split array into chuncks of

function splitArrayIntoChunksOfLen(arr, len) {
  var chunks = [], i = 0, n = arr.length;
  while (i < n) {
    chunks.push(arr.slice(i, i += len));
  }
  return chunks;
}
var alphabet=['a','b','c','d','e','f'];
var alphabetPairs=splitArrayIntoChunksOfLen(alphabet,2); //split into chunks of two

Example 4: javascript explode

//split into array of strings.
var str = "Well, how, are , we , doing, today";
var res = str.split(",");

Example 5: string split javascript

var myString = "An,array,in,a,string,separated,by,a,comma";
var myArray = myString.split(",");
/* 
*
*  myArray :
*  ['An', 'array', 'in', 'a', 'string', 'separated', 'by', 'a', 'comma']
*
*/

Example 6: array chunk javascript

let input = [1,2,3,4,5,6,7,8,9];
let chunked = []
let size = 2;

for (let i = 0;  i < input.length; i += size) {
  chunked.push(input.slice(i, i + size))
}
console.log(chunked)