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