1-js/04-object-basics/01-object (javascript-tutorial#143)

bitQ2019 · leviding · commit fc8544a875d6 · 2018-07-23T01:14:52.000+08:00
* [first] update index

* [update] update

* [update] 翻译完剩下的部分

* [update] update

* fix

* [fix] fix

* fix

* fix

* fix

* fix

* fix

* fix

* fix

* fix

* [fix] fix中英文之间的空格

* [fix] 翻译一些注释

* Update task.md

* Update task.md

* Update solution.md

* Update task.md

* 修正格式问题

* 修正格式问题
diff --git a/1-js/04-object-basics/01-object/2-hello-object/task.md b/1-js/04-object-basics/01-object/2-hello-object/task.md
@@ -2,13 +2,12 @@ importance: 5
 
 ---
 
-# Hello, object
+# 你好，对象
 
-Write the code, one line for each action:
-
-1. Create an empty object `user`.
-2. Add the property `name` with the value `John`.
-3. Add the property `surname` with the value `Smith`.
-4. Change the value of the `name` to `Pete`.
-5. Remove the property `name` from the object.
+按下面的要求写代码：
 
+1. 创建一个空的 `user` 对象.
+2. 为这个对象增加一个属性，键是 `name` 值是 `John`。
+3. 再增加一个属性键`surname`值 `Smith`。
+4. 把 `name` 属性的值改成 `Pete`。
+5. 从对象中删除 `name` 属性。
diff --git a/1-js/04-object-basics/01-object/3-is-empty/_js.view/solution.js b/1-js/04-object-basics/01-object/3-is-empty/_js.view/solution.js
@@ -1,6 +1,6 @@
 function isEmpty(obj) {
   for (let key in obj) {
-    // if the loop has started, there is a prorty
+    // 如果进到循环里面，说明有属性。
     return false;
   }
   return true;
diff --git a/1-js/04-object-basics/01-object/3-is-empty/solution.md b/1-js/04-object-basics/01-object/3-is-empty/solution.md
@@ -1,4 +1,4 @@
-Just loop over the object and `return false` immediately if there's at least one property.
+遍历一个对象，如果对象存在任何属性则 `return false`。
 
 ```js
 function isEmpty(obj) {
diff --git a/1-js/04-object-basics/01-object/3-is-empty/task.md b/1-js/04-object-basics/01-object/3-is-empty/task.md
@@ -2,11 +2,11 @@ importance: 5
 
 ---
 
-# Check for emptiness
+# 检查空对象
 
-Write the function `isEmpty(obj)` which returns `true` if the object has no properties, `false` otherwise.
+写一个方法 `isEmpty(obj)`，当对象没有属性的时候返回 `true`，否则返回 `false`。
 
-Should work like that:
+应该像这样：
 
 ```js
 let schedule = {};
diff --git a/1-js/04-object-basics/01-object/4-const-object/solution.md b/1-js/04-object-basics/01-object/4-const-object/solution.md
@@ -1,19 +1,19 @@
-Sure, it works, no problem.
+当然，这没什么问题。
 
-The `const` only protects the variable itself from changing. 
+关键字 `const` 保证存储对象的变量不改变。
 
-In other words, `user` stores a reference to the object. And it can't be changed. But the content of the object can.
+换句话说，`user` 保存着一个对对象的引用，引用不能被改变。但是对象可以。
 
 ```js run
 const user = {
   name: "John"
 };
 
 *!*
-// works
+// 成功
 user.name = "Pete";
 */!*
 
-// error
+// 错误
 user = 123;
 ```
diff --git a/1-js/04-object-basics/01-object/4-const-object/task.md b/1-js/04-object-basics/01-object/4-const-object/task.md
@@ -2,17 +2,17 @@ importance: 5
 
 ---
 
-# Constant objects?
+# 不可变对象
 
-Is it possible to change an object declared with `const`, how do you think?
+有可能改变 `const` 修饰的对象吗, 你怎么看呢？
 
 ```js
 const user = {
   name: "John"
 };
 
 *!*
-// does it work?
+// 这样可以吗？
 user.name = "Pete";
 */!*
 ```
diff --git a/1-js/04-object-basics/01-object/5-sum-object/task.md b/1-js/04-object-basics/01-object/5-sum-object/task.md
@@ -2,9 +2,9 @@ importance: 5
 
 ---
 
-# Sum object properties
+# 属性值求和
 
-We have an object storing salaries of our team:
+我们用一个对象保存我们团队的工资：
 
 ```js
 let salaries = {
@@ -14,6 +14,6 @@ let salaries = {
 }
 ```
 
-Write the code to sum all salaries and store in the variable `sum`. Should be `390` in the example above.
+写一段代码求出我们的工资总和，保存到 `sum`，从上面看很明显应该是 `390`。
 
-If `salaries` is empty, then the result must be `0`.
+如果 `salaries` 是一个空对象，那结果应该是 `0`。
diff --git a/1-js/04-object-basics/01-object/8-multiply-numeric/_js.view/source.js b/1-js/04-object-basics/01-object/8-multiply-numeric/_js.view/source.js
@@ -7,7 +7,7 @@ let menu = {
 
 function multiplyNumeric(obj) {
   
-  /* your code */
+  /* 你的代码 */
 
 }
 
diff --git a/1-js/04-object-basics/01-object/8-multiply-numeric/task.md b/1-js/04-object-basics/01-object/8-multiply-numeric/task.md
@@ -2,14 +2,14 @@ importance: 3
 
 ---
 
-# Multiply numeric properties by 2
+# 数值属性都乘以 2
 
-Create a function `multiplyNumeric(obj)` that multiplies all numeric properties of `obj` by `2`.
+创建一个 `multiplyNumeric(obj)` 方法，把 `obj` 所有的数值属性都乘以 `2`。
 
-For instance:
+例如：
 
 ```js
-// before the call
+// 在调用之前
 let menu = {
   width: 200,
   height: 300,
@@ -18,16 +18,16 @@ let menu = {
 
 multiplyNumeric(menu);
 
-// after the call
+// 调用方法之后
 menu = {
   width: 400,
   height: 600,
   title: "My menu"
 };
 ```
 
-Please note that `multiplyNumeric` does not need to return anything. It should modify the object in-place.
+注意 `multiplyNumeric` 方法不返回任何值，它改变了传入的对象。
 
-P.S. Use `typeof` to check for a number here.
+P.S. 用 `typeof` 检查值类型。
 
 
diff --git a/1-js/04-object-basics/01-object/article.md b/1-js/04-object-basics/01-object/article.md

Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,6 @@`
`1`	`1`	`function isEmpty(obj) {`
`2`	`2`	`for (let key in obj) {`
`3`		`- // if the loop has started, there is a prorty`
	`3`	`+ // 如果进到循环里面，说明有属性。`
`4`	`4`	`return false;`
`5`	`5`	`}`
`6`	`6`	`return true;`
Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		-Just loop over the object and `return false` immediately if there's at least one property.
	`1`	+遍历一个对象，如果对象存在任何属性则 `return false`。
`2`	`2`
`3`	`3`	```js
`4`	`4`	`function isEmpty(obj) {`
Original file line number	Diff line number	Diff line change
`@@ -7,7 +7,7 @@ let menu = {`
`7`	`7`
`8`	`8`	`function multiplyNumeric(obj) {`
`9`	`9`
`10`		`- /* your code */`
	`10`	`+ /* 你的代码 */`
`11`	`11`
`12`	`12`	`}`
`13`	`13`