- Basic Algorithm Scripting: Chunky Monkey | freeCodeCamp.org
- freeCodeCamp Challenge Guide: Chunky Monkey - Guide - The freeCodeCamp Forum
第一版：
function chunkArrayInGroups(arr, size) {
let newArr = []
let subArr = []
if (size >= arr.length) {
return (newArr = arr)
} else {
arr.forEach(function (elem) {
console.log(elem)
subArr.push(elem)
if (subArr.length === size) {
newArr.push(subArr)
}
})
return newArr
}
}
console.log(chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 5))其他实现：
function chunkArrayInGroups(arr, size) {
let newArr = []
let subArr = []
for (let a = 0; a < arr.length; a++) {
if (a % size !== size - 1) subArr.push(arr[a])
else {
subArr.push(arr[a])
newArr.push(subArr)
subArr = []
}
}
if (subArr.length !== 0) newArr.push(subArr)
return newArr
}
console.log(chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 4))function chunkArrayInGroups(arr, size) {
let newArr = []
for (let a = 0; a < arr.length; a += size) {
newArr.push(arr.slice(a, a + size))
}
return newArr
}
console.log(chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 4))function chunkArrayInGroups(arr, size) {
let newArr = []
let i = 0
while (i < arr.length) {
newArr.push(arr.slice(i, i + size))
i += size
}
return newArr
}
console.log(chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 4))这段代码不太理解
function chunkArrayInGroups(arr, size) {
let newArr = []
while (arr.length > 0) {
newArr.push(arr.splice(0, size))
}
return newArr
}
console.log(chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 3))这段代码竟然用到了递归
function chunkArrayInGroups(arr, size) {
if (arr.length <= size) return [arr]
else {
return [arr.slice(0, size)].concat(
chunkArrayInGroups(arr.slice(size), size),
)
}
}
console.log(chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 3))