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]]const chunkSize = 10;
const arr = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17];
const groups = arr.map((e, i) => {
return i % chunkSize === 0 ? arr.slice(i, i + chunkSize) : null;
}).filter(e => { return e; });
console.log({arr, groups})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 twofunction sliceIntoChunks(arr, chunkSize) {
const res = [];
for (let i = 0; i < arr.length; i += chunkSize) {
const chunk = arr.slice(i, i + chunkSize);
res.push(chunk);
}
return res;
}
const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
console.log(sliceIntoChunks(arr, 3));Array.prototype.chunk = function(size) {
let result = [];
while(this.length) {
result.push(this.splice(0, size));
}
return result;
}
const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9];
console.log(arr.chunk(2));const splitArray=(arr, chunk)=>{
const elementInEachSubArray = Math.floor(arr.length / chunk)
const remainingElement = arr.length - (elementInEachSubArray * chunk)
let splitArray = Array.from({length: chunk}, ()=>[])
splitArray = splitArray.map(
(array, i)=>{
return arr.slice(i*elementInEachSubArray, elementInEachSubArray * (i + 1))
}
).map((array, i)=>[...array, arr[arr.length - remainingElement + i]].filter(Boolean))
console.log(splitArray)
}