result.js
786 Bytes
define(['./isFunction', './_toPath'], function (isFunction, _toPath) {
// Traverses the children of `obj` along `path`. If a child is a function, it
// is invoked with its parent as context. Returns the value of the final
// child, or `fallback` if any child is undefined.
function result(obj, path, fallback) {
path = _toPath(path);
var length = path.length;
if (!length) {
return isFunction(fallback) ? fallback.call(obj) : fallback;
}
for (var i = 0; i < length; i++) {
var prop = obj == null ? void 0 : obj[path[i]];
if (prop === void 0) {
prop = fallback;
i = length; // Ensure we don't continue iterating.
}
obj = isFunction(prop) ? prop.call(obj) : prop;
}
return obj;
}
return result;
});