Introduction: I stumbled upon the newline character in vue\n,<br>do not wrap and do not take effect
First look at a piece of code
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div id="app">
<span>{
{msg}}</span>
</div>
</body>
<script src="../vue.js"></script>
<script>
var vm = new Vue({
el: '#app',
data: {
msg:'这是一个消息\n这是另外一个消息',
}
})
</script>
</html>Page effect:
It doesn’t have the line-breaking effect we want, and the \n in msg doesn’t work either
Solution (style="white-space: pre-wrap;")
<span style="white-space: pre-wrap;">{
{msg}}</span>You can wrap at this time
If it is br, what will be the effect?
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div id="app">
<span style="white-space: pre-wrap;">{
{msg}}</span>
</div>
</body>
<script src="../vue.js"></script>
<script>
var vm = new Vue({
el: '#app',
data: {
msg:'这是一个消息<br>这是另外一个消息',
}
})
</script>
</html>Page effect:
<br>It was rendered directly on the page as a character, and it failed to achieve the effect of line wrapping.
Solution:
1. Use v-html to process
(Because <br> is used, this sentence style="white-space: pre-wrap;" can be omitted)
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div id="app">
<span v-html='msg'></span>
</div>
</body>
<script src="../vue.js"></script>
<script>
var vm = new Vue({
el: '#app',
data: {
msg:'这是一个消息<br>这是另外一个消息',
}
})
</script>
</html>2. Use filter to process, replace <br> with \n
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div id="app">
<span style="white-space: pre-wrap;">{
{msg | lineBreak}}</span>
</div>
</body>
<script src="../vue.js"></script>
<script>
var vm = new Vue({
el: '#app',
data: {
msg:'这是一个消息<br>这是另外一个消息',
},
filters:{
lineBreak:function(data){
return data.replace(/<br>/g,'\n');
}
}
})
</script>
</html>