d2-ui
Version:
15 lines (14 loc) • 361 B
JavaScript
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = onlyOnce;
function onlyOnce(fn) {
return function () {
if (fn === null) throw new Error("Callback was already called.");
var callFn = fn;
fn = null;
callFn.apply(this, arguments);
};
}
module.exports = exports['default'];
;