In this article, you follow the process of building a simple search engine and then build an instant search user interface for that engine.

在本文中，您要遵循构建简单搜索引擎的流程，而后再为该引擎构建即时搜索用户界面。

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You might want to add a pre-search—a search term that you define—the results of which will first come up when a user loads your page.

您可能想添加一个预搜索——您定义的一个搜索词——当用户加载您的页面时，将首先出现预搜索结果。

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We decided to come up with better search service, better product, better user experience.

于是公司决定开发更好的搜索服务，更好的产品，更好的用户体验。

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This is also the classification of user's needs in our search box.

这是根据用户需求,进行的分类。

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That goes back to that idea of sort of discipline coding. It's easy to have assumptions about what you think are going to come into the program when you writ it. If you really know what they are use them as search, but if you think there's going to be some flexibility, you want to prevent the user getting trapped in a bad spot, and exceptions as a consequence are a good thing to use.

这又回到了规范编码的想法上来了,在你写代码的时候考虑,什么会进入你的代码的思考是简单的,如果你真的知道,他们是用他们来做搜索的,而你希望有一定的灵活性，你想要阻止用户,陷入一个艰难的境地,那么异常是非常实用的。

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Previously, it was easy for sites to see not only the traffic they received from organic searches, but also the search terms a user entered and, in some cases, the position in the search results where their site was listed.

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This broadening of search has been stimulating increased user engagement in search.

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Many companies now collect large datasets on consumer behavior, be it online search patterns or user demographics.

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