Benchmark: split chunk by splice vs slice

split chunk by splice vs slice (version: 0)

Script Preparation code:

var CHUNK_SIZE = 500;
var list = [];
for (var i = 0; i < 1E6; i++) {
    list.push(i);
}

Tests:

slice
let chunks = []; let chunkStartIndex = 0; while (chunkStartIndex < list.length) { chunks.push(list.slice(chunkStartIndex, chunkStartIndex += CHUNK_SIZE)); }
splice from the beginning
let chunks = []; while (list.length) { chunks.push(list.splice(0, CHUNK_SIZE)); }
splice from the end
const remainder = list.length % CHUNK_SIZE; let chunkIndex = Math.ceil(list.length / CHUNK_SIZE); let chunks = new Array(chunkIndex); if (remainder) chunks[--chunkIndex] = list.splice(list.length - remainder); while (--chunkIndex >= 0) chunks[chunkIndex] = list.splice(chunkIndex * CHUNK_SIZE);

Rendered benchmark preparation results:

Previous results

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