noahlam / v-coupon Goto Github PK
View Code? Open in Web Editor NEWa coupon component for vue
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使用多个v-coupon组件，出现Cannot read property 'setAttribute' of undefined的错误
<v-coupon :config="couponConfig">
<div class="couponContent">
优惠券
<div class="amount">5元</div>
</div>
</v-coupon>
<v-coupon :config="couponConfig">
<div class="couponContent">
优惠券
<div class="amount">5元</div>
</div>
</v-coupon>
当我在一个vue文件里，引用两个v-coupon组件时，就会报Cannot read property 'setAttribute' of undefined的错误。不知哪里有问题了。
或者大神能提供个使用多个v-coupon使用的demo来看看？
如何支持mpvue?
renderDom() {
let content=this.selectComponent(".couponSlot");
// let content = document.querySelector('.couponSlot').children[0]
content.setAttribute('xmlns', 'http://www.w3.org/1999/xhtml')
this.$refs.foreignObject.appendChild(content)
}
这里挂载和查找都用到了 dom 操作 但是在微信小程序中是不可以用dom的 请问如何兼容呢。
cutSlope 半圆的1.5是如何计算的
对贝塞尔曲线理解的不怎么好，请问是怎么得到半径*1.5 绘制半圆的呢
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