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chore: error

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cha0s 2021-01-18 21:02:52 -06:00
parent 10a679bea4
commit 6d5c1a4a70
1 changed files with 3 additions and 0 deletions
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3
packages/core/src/event-emitter.js
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@ -107,6 +107,9 @@ export default function EventEmitterMixin(Superclass) {
}
onSingleEvent(type, fn, that, once) {
if ('function' !== typeof fn) {
throw new TypeError('EventEmitter::onSingleEvent() requires function listener');
}
const listener = createListener(fn, that, type, once);
if (!(type in this.$$events)) {
this.$$events[type] = [];