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This article mainly introduces you to the relevant information about the use of v-if instructions in elements and templates in Vue.js learning records. The article gives detailed sample codes for your reference and learning. I believe it will be of some use to you. The reference learning value, friends who need it can take a look below.
This article mainly introduces to you the relevant content about the use of v-if instructions in elements and templates of Vue.js. It is shared for your reference and learning. Let’s take a look at the detailed introduction:
The syntax is relatively simple, just enter the code directly:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "www.w3.org/TR/html4/loose.dtd"> <html> <head> <title></title> <script src="cdn.bootcss.com/vue/2.2.2/vue.min.js"></script> </head> <body> <p id="wangtuizhijiademo"> <p v-if="instruction">在Vue.js中,当判断语句为true,可以显示信息,当为false时候不显示</p> <template v-if="show1"> <p>我是 show1,默认是开启的(true),当你设置false我不显示!</p> </template> <template v-if="show2"> <p>我是 show2,默认是关闭的,当你设置show2的值为true,我会被显示!</p> </template> </p> <script> new Vue({ el: '#wangtuizhijiademo', data: { instruction:true, show1: true, show2: false } }) </script> </body> </html>
true is the open state, false is the closed state.
#If you are interested, you can try changing show2: false from false to true. You can see two messages, as follows:
In Vue.js, when the judgment statement is true, the information can be displayed, and when it is false, it will not be displayed.
I am show1, which is enabled by default (true). When you set false, I will not display it!
I am show2, which is turned off by default. When you set the value of show2 to true, I will be displayed!
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