ArrayBuffer, binary arrays (#529)

* init trans of array buffer

* update trans for array buffer article

* arraybuffer: minor update

* arraybuffer: update task md

* arraybuffer: add trans for solution js

* arraybuffer: update trans against review comments

* arraybuffer: update against review comments

* arraybuffer: resolve review comment

resolve review comment

Co-Authored-By: LeviDing <[email protected]>

* arraybuffer: resolve review comment

Co-Authored-By: LeviDing <[email protected]>

* arraybuffer: resolve review comment

Co-Authored-By: LeviDing <[email protected]>

* arraybuffer: resolve review comment

Co-Authored-By: LeviDing <[email protected]>

* arraybuffer: resolve review comment

Co-Authored-By: LeviDing <[email protected]>

* arraybuffer: update against review comments

* arraybuffer: update against review comment

Author: bemself

Diff for: 4-binary/01-arraybuffer-binary-arrays/01-concat/_js.view/solution.js

@@ -1,13 +1,13 @@
 function concat(arrays) {
-  // sum of individual array lengths
+  // 对每个数组长度求和
   let totalLength = arrays.reduce((acc, value) => acc + value.length, 0);
 
   if (!arrays.length) return null;
 
   let result = new Uint8Array(totalLength);
 
-  // for each array - copy it over result
-  // next array is copied right after the previous one
+  // 对于每个数组 — 复制到 result
+  // 下一个数组在前一个后面复制
   let length = 0;
   for(let array of arrays) {
     result.set(array, length);

Diff for: 4-binary/01-arraybuffer-binary-arrays/01-concat/_js.view/source.js

@@ -1,5 +1,5 @@
 function concat(arrays) {
-  // ...your code...
+  // ……你的代码……
 }
 
 let chunks = [

Diff for: 4-binary/01-arraybuffer-binary-arrays/01-concat/task.md

@@ -1,4 +1,4 @@
 
-# Concatenate typed arrays
+# 拼接类型化数组（Concatenate typed arrays）
 
-Given an array of `Uint8Array`, write a function `concat(arrays)` that returns a concatenation of them into a single array.
+给定一个 `Uint8Array` 数组，请写一个函数 `concat(arrays)`，将数组拼接成一个单一数组并返回。