VueJS样式绑定v-bind:class
2021-07-09 18:04
标签:new 表达式 strong 实例 error nbsp alt ack cti class 与 style 是 HTML 元素的属性,用于设置元素的样式,我们可以用 v-bind 来设置样式属性。 动态切换多个 class HTML text-danger 类背景颜色覆盖了 active 类的背景色.实际渲染后如下: 将样式绑定到对象 HTML: 以上效果都是一样的,如下图:
computed 对象属性 HTML 效果为绿色。 数组语法[] 效果为红色。 三元表达式 效果为绿色。 VueJS样式绑定v-bind:class 标签:new 表达式 strong 实例 error nbsp alt ack cti 原文地址:http://www.cnblogs.com/boonya/p/7092649.html
Vue.js v-bind 在处理 class 和 style 时, 专门增强了它。表达式的结果类型除了字符串之外,还可以是对象或数组。DOCTYPE html>
html>
head>
meta charset="utf-8">
title>Vue 测试实例 - 菜鸟教程(runoob.com)title>
script src="https://cdn.bootcss.com/vue/2.2.2/vue.min.js">script>
style>
.active {
width: 100px;
height: 100px;
background: green;
}
.text-danger {
background: red;
}
style>
head>
body>
div id="app">
div class="static"
v-bind:class="{ active: isActive, ‘text-danger‘: hasError }">
div>
div>
script>
new Vue({
el: ‘#app‘,
data: {
isActive: true,
hasError: true
}
})
script>
body>
html>
div class="static active text-danger">div>
DOCTYPE html>
html>
head>
meta charset="utf-8">
title>Vue 测试实例 - 菜鸟教程(runoob.com)title>
script src="https://cdn.bootcss.com/vue/2.2.2/vue.min.js">script>
style>
.active {
width: 100px;
height: 100px;
background: green;
}
.text-danger {
background: red;
}
style>
head>
body>
div id="app">
div v-bind:class="classObject">div>
div>
script>
new Vue({
el: ‘#app‘,
data: {
classObject: {
active: true,
‘text-danger‘: true
}
}
})
script>
body>
html>
DOCTYPE html>
html>
head>
meta charset="utf-8">
title>Vue 测试实例 - 菜鸟教程(runoob.com)title>
script src="https://cdn.bootcss.com/vue/2.2.2/vue.min.js">script>
style>
.active {
width: 100px;
height: 100px;
background: green;
}
.text-danger {
background: red;
}
style>
head>
body>
div id="app">
div v-bind:class="classObject">div>
div>
script>
new Vue({
el: ‘#app‘,
data: {
isActive: true,
error: null
},
computed: {
classObject: function () {
return {
active: this.isActive && !this.error,
‘text-danger‘: this.error && this.error.type === ‘fatal‘,
}
}
}
})
script>
body>
html>
DOCTYPE html>
html>
head>
meta charset="utf-8">
title>Vue 测试实例 - 菜鸟教程(runoob.com)title>
script src="https://cdn.bootcss.com/vue/2.2.2/vue.min.js">script>
style>
.active {
width: 100px;
height: 100px;
background: green;
}
.text-danger {
background: red;
}
style>
head>
body>
div id="app">
div v-bind:class="[activeClass, errorClass]">div>
div>
script>
new Vue({
el: ‘#app‘,
data: {
activeClass: ‘active‘,
errorClass: ‘text-danger‘
}
})
script>
body>
html>
DOCTYPE html>
html>
head>
meta charset="utf-8">
title>Vue 测试实例 - 菜鸟教程(runoob.com)title>
script src="https://cdn.bootcss.com/vue/2.2.2/vue.min.js">script>
style>
.text-danger {
width: 100px;
height: 100px;
background: red;
}
.active {
width: 100px;
height: 100px;
background: green;
}
style>
head>
body>
div id="app">
div v-bind:class="[errorClass ,isActive ? activeClass : ‘‘]">div>
div>
script>
new Vue({
el: ‘#app‘,
data: {
isActive: true,
activeClass: ‘active‘,
errorClass: ‘text-danger‘
}
})
script>
body>
html>