what is react conditional rendering

青灯夜游
Release: 2022-07-13 19:03:54
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In react, conditional rendering refers to rendering under specified conditions. If the conditions are not met, no rendering will be performed; that is, the content of the interface will display different content according to different situations, or decide whether to render a certain part. content. React conditional rendering method: 1. Conditional judgment statement, suitable for situations with more logic; 2. Ternary operator, suitable for situations with relatively simple logic; 3. AND operator "&&", suitable for rendering a certain item if the condition is true Component, if the condition is not met, nothing will be rendered.

what is react conditional rendering

#The operating environment of this tutorial: Windows7 system, react18 version, Dell G3 computer.

Conditional rendering, as the name suggests, means "rendering under certain conditions" and "not rendering under other conditions" - a typical if-else scenario.

React Conditional Rendering

#In some cases, the content of the interface will display different content according to different situations, or decide whether to render a certain part of the content:

  • In vue, we will control it through instructions: such as v-if, v-show;
  • In React, all conditional judgments are the same as ordinary The JavaScript code is consistent;

What are the common methods of conditional rendering?

Method 1: Conditional judgment statement

  • Suitable for situations with more logic

what is react conditional rendering

Method 2: Ternary operator

  • Suitable for relatively simple logic

what is react conditional rendering
what is react conditional rendering

what is react conditional rendering

Method 3: Suitable with operator &&

  • if condition If the condition is established, a certain component will be rendered; if the condition is not established, nothing will be rendered;

what is react conditional rendering

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