将数组拆分成多个指定长度的区块

/**
 * 将数组拆分成多个指定长度的区块
 * @example
 *
 */
const chunk = (arr = [], size = 1) => { 
return Array.from({ length: Math.ceil(arr.length / size) }, (v, i) => arr.slice(i * size, i * size + size))
}