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12 lines
248 B
JavaScript
12 lines
248 B
JavaScript
import Vue from 'vue';
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export const once = function(el, event, fn) {
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const listener = function() {
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if (fn) {
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fn.apply(this, arguments);
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}
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el.removeEventListener(event, listener);
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};
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el.addEventListener(event, listener);
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};
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