我有一个Vue实例,其中有五个计算属性函数,它们针对不同的值做相同的事情。我重复了很多次,并想知道是否有更清晰的方法来减少这种重复。
在HTML模板中,我有五个输入字段,每个输入字段限制为25个字符,我想显示一个字符计数器:
在HTML模板中,我有五个输入字段,每个输入字段限制为25个字符,我想显示一个字符计数器:
<div class='field is-grouped'>
<p class='control is-expanded'>
<input
class="input"
placeholder="Trophy engraving line 1 (25 character limit)"
v-model='engraving.line1'
v-validate="'required'"
:class="{'input': true, 'is-danger': errors.has('engraving.line1') }"
name='engraving.line1'>
</p>
<p class='control'>
<span>{{ line1count }}</span>
</p>
</div>
我有五个与此完全相同的字段,除了它们说engraving.line2
、engraving.line3
、engraving.line4
和engraving.line5
。
然后,在我的组件JavaScript中,我定义了刻字对象,并为每个字段使用相同的计算方法。
export default {
data(){
return {
engraving: {
line1: '',
line2: '',
line3: '',
line4: '',
line5: '',
}
};
},
computed: {
line1count() {
var chars = this.engraving.line1.length,
limit = 25;
return (limit - chars) + "/" + limit + " characters remaining";
},
line2count(){
var chars = this.engraving.line2.length,
limit = 25;
return (limit - chars) + "/" + limit + " characters remaining";
},
line3count(){
var chars = this.engraving.line3.length,
limit = 25;
return (limit - chars) + "/" + limit + " characters remaining";
},
line4count(){
var chars = this.engraving.line4.length,
limit = 25;
return (limit - chars) + "/" + limit + " characters remaining";
},
line5count(){
var chars = this.engraving.line5.length,
limit = 25;
return (limit - chars) + "/" + limit + " characters remaining";
}
},
我如何重复利用此函数以接受数据参数,从而避免冗余代码?