<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="http://cn.vuejs.org/js/vue.js"></script>
</head>
<body>
<div id="app">
<template v-for="(item,index) in msg">
<textarea :maxlength ="checkLength(index)" v-model="item.name" cols="30" rows="10" ></textarea>
<span v-if="index == 1">还可以输入{{10- result[index]}}字符</span>
</template>
</div>
<script>
var vm = new Vue({
el:‘#app‘,
data:{
msg:[
{"name":""},
{"name":""},
{"name":""}
]
},
methods:{
checkLength:function(index){
return index <= 1 ? 10: ‘‘
}
},
computed:{
result:function(){
var l = 0;
var arr = [];
var reg = /^[\s]$/g;
for(var i=0; i<this.msg.length; i++){
l = (this.msg[i].name).toString().replace(/\s/g,"").length;
arr.push(l);
}
return arr;
}
}
})
</script>
</body>
</html>
时间： 2024-10-13 02:40:54