Shulou(Shulou.com)06/01 Report--

This article will explain in detail how javascript uses the search () method. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Search ()

Var str = "123"; console.log (str.search (" 3 ")! =-1); / / true

The search () method is used to retrieve a substring specified in a string or to retrieve a substring that matches a regular expression. If no matching substring is found,-1 is returned.

What is the role of JavaScript? 1, can embed dynamic text in HTML pages. 2. Respond to browser events. 3. Read and write HTML elements. 4. Verify the data before it is submitted to the server. 5. Detect the browser information of visitors. 6. Control cookies, including creation and modification, etc. 7. Server-side programming based on Node.js technology.

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