本文介绍了Vue 2.0 - 计算问题的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
当点击启动方法增量"变量点击"改变但为什么它不改变计数器".应该是因为我在计数器函数中引用了clicks"变量.
When on click start method "increment" variable "clicks" change but why it not change "counter". It should be because i have in counter function reference to "clicks" variable.
new Vue({
el: '#app',
data: {
title: 'helloworld',
cssClass: '',
clicks: 0,
counter: 0
},
methods: {
changeTitle() {
this.title = 'helloworld new';
},
increment() {
this.clicks++;
}
},
computed: {
counter() {
return this.clicks * 2;
}
}
});
https://jsfiddle.net/freeq343/b7fyeyxm/
推荐答案
不要在数据上定义计数器.计算出的值就像一个数据属性.
Don't define counter on your data. The computed value acts like a data property.
new Vue({
el: '#app',
data: {
title: 'helloworld',
cssClass: '',
clicks: 0
},
methods: {
changeTitle() {
this.title = 'helloworld new';
},
increment() {
this.clicks++;
}
},
computed: {
counter() {
return this.clicks * 2;
}
}
});
这篇关于Vue 2.0 - 计算问题的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!