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fix maintain attrs hook

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shibao 2022-03-04 22:56:52 -05:00
parent 0309e9d714
commit 9f2cc54738
1 changed files with 4 additions and 1 deletions
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5
assets/js/maintain_attrs.js
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@ -2,7 +2,10 @@
// update. https://github.com/phoenixframework/phoenix_live_view/issues/1011 // update. https://github.com/phoenixframework/phoenix_live_view/issues/1011
export default { export default {
attrs () { return this.el.getAttribute('data-attrs').split(', ') }, attrs() {
const attrs = this.el.getAttribute('data-attrs');
if (attrs) { return attrs.split(', '); } else { return []; }
},
beforeUpdate () { this.prevAttrs = this.attrs().map(name => [name, this.el.getAttribute(name)]) }, beforeUpdate () { this.prevAttrs = this.attrs().map(name => [name, this.el.getAttribute(name)]) },
updated () { this.prevAttrs.forEach(([name, val]) => this.el.setAttribute(name, val)) } updated () { this.prevAttrs.forEach(([name, val]) => this.el.setAttribute(name, val)) }
} }