fix xcatliu#33 update tuple.md

xcatliu · xcatliu · commit 21b163aa3eb9 · 2019-09-02T11:31:25.000+08:00
diff --git a/advanced/tuple.md b/advanced/tuple.md
@@ -2,72 +2,61 @@
 
 数组合并了相同类型的对象，而元组（Tuple）合并了不同类型的对象。
 
-元组起源于函数编程语言（如 F#）,在这些语言中频繁使用元组。
+元组起源于函数编程语言（如 F#），这些语言中会频繁使用元组。
 
 ## 简单的例子
 
 定义一对值分别为 `string` 和 `number` 的元组：
 
 ```ts
-let xcatliu: [string, number] = ['Xcat Liu', 25];
+let tom: [string, number] = ['Tom', 25];
 ```
 
 当赋值或访问一个已知索引的元素时，会得到正确的类型：
 
 ```ts
-let xcatliu: [string, number];
-xcatliu[0] = 'Xcat Liu';
-xcatliu[1] = 25;
+let tom: [string, number];
+tom[0] = 'Tom';
+tom[1] = 25;
 
-xcatliu[0].slice(1);
-xcatliu[1].toFixed(2);
+tom[0].slice(1);
+tom[1].toFixed(2);
 ```
 
 也可以只赋值其中一项：
 
 ```ts
-let xcatliu: [string, number];
-xcatliu[0] = 'Xcat Liu';
+let tom: [string, number];
+tom[0] = 'Tom';
 ```
 
 但是当直接对元组类型的变量进行初始化或者赋值的时候，需要提供所有元组类型中指定的项。
 
 ```ts
-let xcatliu: [string, number];
-xcatliu = ['Xcat Liu', 25];
+let tom: [string, number];
+tom = ['Tom', 25];
 ```
 
 ```ts
-let xcatliu: [string, number] = ['Xcat Liu'];
+let tom: [string, number];
+tom = ['Tom'];
 
-// index.ts(1,5): error TS2322: Type '[string]' is not assignable to type '[string, number]'.
-//   Property '1' is missing in type '[string]'.
-```
-
-```ts
-let xcatliu: [string, number];
-xcatliu = ['Xcat Liu'];
-xcatliu[1] = 25;
-
-// index.ts(2,1): error TS2322: Type '[string]' is not assignable to type '[string, number]'.
-//   Property '1' is missing in type '[string]'.
+// Property '1' is missing in type '[string]' but required in type '[string, number]'.
 ```
 
 ## 越界的元素
 
 当添加越界的元素时，它的类型会被限制为元组中每个类型的联合类型：
 
 ```ts
-let xcatliu: [string, number];
-xcatliu = ['Xcat Liu', 25];
-xcatliu.push('http://xcatliu.com/');
-xcatliu.push(true);
+let tom: [string, number];
+tom = ['Tom', 25];
+tom.push('male');
+tom.push(true);
 
-// index.ts(4,14): error TS2345: Argument of type 'boolean' is not assignable to parameter of type 'string | number'.
-//   Type 'boolean' is not assignable to type 'number'.
+// Argument of type 'true' is not assignable to parameter of type 'string | number'.
 ```
 
-
 ## 参考
 
 - [Basic Types # Tuple](http://www.typescriptlang.org/docs/handbook/basic-types.html#tuple)（[中文版](https://zhongsp.gitbooks.io/typescript-handbook/content/doc/handbook/Basic%20Types.html#元组-tuple)）
diff --git a/examples/test.js b/examples/test.js
@@ -0,0 +1,4 @@
+var tom;
+tom = ['Tom', 25];
+tom.push('male');
+tom.push(true);
diff --git a/examples/test.ts b/examples/test.ts
@@ -0,0 +1,4 @@
+let tom: [string, number];
+tom = ['Tom', 25];
+tom.push('male');
+tom.push(true);
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -52,6 +52,6 @@
         "lint-md-cli": "^0.1.1",
         "npm-run-all": "^4.1.5",
         "prettier": "^1.18.2",
-        "typescript": "^3.5.1"
+        "typescript": "^3.6.2"
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -52,6 +52,6 @@`
`52`	`52`	`"lint-md-cli": "^0.1.1",`
`53`	`53`	`"npm-run-all": "^4.1.5",`
`54`	`54`	`"prettier": "^1.18.2",`
`55`		`- "typescript": "^3.5.1"`
	`55`	`+ "typescript": "^3.6.2"`
`56`	`56`	`}`
`57`	`57`	`}`