How to use trim in vue

The trim method of Vue.js can remove the leading and trailing whitespace characters from the string. The usage is as follows: call the trim method directly. The trim method returns a new string with leading and trailing whitespace characters removed. The trim method only removes leading and trailing whitespace characters, not internal whitespace characters in the string. The trim method is immutable, i.e. it returns a new trimmed string and does not modify the original string.

The trim method in Vue.js

Overview
Vue.js The trim method in is used to remove leading and trailing whitespace characters from a string.

Syntax

<code class="javascript">trim()</code>

Return value
A new string with leading and trailing whitespace characters removed.

Usage
Just call the trim method directly.

<code class="javascript">// 原始字符串
const str = "   Hello, world!   "

// 修剪字符串
const trimmedStr = str.trim()

// 输出修剪后的字符串
console.log(trimmedStr) // Hello, world!</code>

Example
trim The method can be used to:

• Clean whitespace characters from user input, for example from form fields When getting the value.
• Ensure that strings match exactly before text comparison.
• Remove unnecessary whitespace characters from strings to optimize performance.

Note

• trim This method only removes the leading and trailing blank characters, but does not delete the blank characters inside the string. .
• If the string does not contain any whitespace characters, the trim method will return the original string itself.
• trim The method is immutable, i.e. it does not modify the original string but returns a new trimmed string.

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