Created
September 9, 2016 16:13
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export function listenOnce(target, type, listener, options) { | |
let once = (e) => { | |
target.removeEventListener(type, once, options) | |
listener(e) | |
} | |
target.addEventListener(type, once, options) | |
} | |
export function listenAnyOnce(target, types, listener, options) { | |
let once = (e) => { | |
for (let i = 0, n = types.length; i < n; i++) { | |
target.removeEventListener(types[i], once, options) | |
} | |
listener(e) | |
} | |
for (let i = 0, n = types.length; i < n; i++) { | |
target.addEventListener(types[i], once, options) | |
} | |
} |
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