How to use function intercept vue

Function interception in Vue is a technique used to limit the number of times a function is called within a specified time period and prevent performance problems. The implementation method is: import the lodash library: import { debounce } from 'lodash'; Use the debounce function to create an intercept function: const debouncedFunction = debounce(() => { / Logical/ }, 500); call the intercept function, and the control function is called at most once within 500 milliseconds.

Function intercept in Vue

What is function intercept?

Function interception is a technique that limits the number of times a function is called within a specified time period. This is very useful to prevent performance problems caused by frequent event triggering.

How to use function intercept in Vue?

In Vue, third-party libraries such as lodash can be used to implement function interception. Here is how to use the debounce function in lodash for function intercept:

 <code class="javascript">import { debounce } from 'lodash'; // 创建一个截流后的函数const debouncedFunction = debounce(() => { // 在此处执行你的逻辑}, 500); // 在需要时调用截流后的函数this.debouncedFunction();</code>

Parameter description:

• Function: The function to be intercepted.
• Waiting time: Controls the number of milliseconds when the function is called within a specified time.

effect:

When debouncedFunction is called, it will be called at most once in 500 milliseconds. If it is triggered multiple times in 500 milliseconds, only the last trigger will be executed.

Other options:

• ** leading：**布尔值，表示是否在等待时间开始时执行函数。（默认为false`)
• ** trailing：**布尔值，表示是否在等待时间结束时执行函数。（默认为true`)

Notice:

• Make sure the lodash library is imported correctly in the Vue instance.
• When using the lodash function, you need to install it in the component.

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