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chore(i18n,learn): processed translations (#48443)
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@@ -11,28 +11,26 @@ dashedName: using-objects-for-lookups
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对象和字典一样,可以用来存储键/值对。 如果数据是扁平的,你可以用对象来查找你想要的值,而不是链式使用 `switch` 或 `if/else` 语句。 当你知道你的输入数据在某个范围时,这种查找方式极为有效。
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这是简单的反向字母表:
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Here is an example of an article object:
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```js
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const alpha = {
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1:"Z",
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2:"Y",
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3:"X",
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4:"W",
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...
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24:"C",
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25:"B",
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26:"A"
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const article = {
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"title": "How to create objects in JavaScript",
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"link": "https://www.freecodecamp.org/news/a-complete-guide-to-creating-objects-in-javascript-b0e2450655e8/",
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"author": "Kaashan Hussain",
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"language": "JavaScript",
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"tags": "TECHNOLOGY",
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"createdAt": "NOVEMBER 28, 2018"
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};
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const thirdLetter = alpha[2];
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const lastLetter = alpha[24];
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const articleAuthor = article[author];
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const articleLink = article[link];
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const value = 2;
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const valueLookup = alpha[value];
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const value = "title";
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const valueLookup = article[value];
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```
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`thirdLetter` 是字符串 `Y`,`lastLetter` 是字符串 `C`,`valueLookup` 是字符串 `Y`。
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`articleAuthor` is the string `Kaashan Hussain`, `articleLink` is the string `https://www.freecodecamp.org/news/a-complete-guide-to-creating-objects-in-javascript-b0e2450655e8/`, and `valueLookup` is the string `How to create objects in JavaScript`.
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# --instructions--
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