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/**
* Safe chained function.
*
* Will only create a new function if needed,
* otherwise will pass back existing functions or null.
*/
export default function createChainedFunction() {
for (var _len = arguments.length, funcs = new Array(_len), _key = 0; _key < _len; _key++) {
funcs[_key] = arguments[_key];
}
return funcs.reduce(function (acc, func) {
if (func == null) {
return acc;
}
return function chainedFunction() {
for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
args[_key2] = arguments[_key2];
}
acc.apply(this, args);
func.apply(this, args);
};
}, function () {});
} |