82f2b76e25
We now use webpack instead of SystemJS, effectively bundling modules into one file (plus commons chunks) for every entry point. This results in a much smaller extension size (almost half). Furthermore we use yarn/npm even for extension run-time dependencies. This relieves us from manually vendoring and building dependencies. It's also easier to understand for new developers familiar with node.
57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
var castPath = require('./_castPath'),
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isFunction = require('./isFunction'),
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toKey = require('./_toKey');
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/**
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* This method is like `_.get` except that if the resolved value is a
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* function it's invoked with the `this` binding of its parent object and
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* its result is returned.
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*
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* @static
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* @since 0.1.0
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* @memberOf _
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* @category Object
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* @param {Object} object The object to query.
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* @param {Array|string} path The path of the property to resolve.
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* @param {*} [defaultValue] The value returned for `undefined` resolved values.
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* @returns {*} Returns the resolved value.
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* @example
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*
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* var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
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*
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* _.result(object, 'a[0].b.c1');
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* // => 3
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*
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* _.result(object, 'a[0].b.c2');
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* // => 4
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*
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* _.result(object, 'a[0].b.c3', 'default');
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* // => 'default'
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*
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* _.result(object, 'a[0].b.c3', _.constant('default'));
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* // => 'default'
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*/
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function result(object, path, defaultValue) {
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path = castPath(path, object);
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var index = -1,
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length = path.length;
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// Ensure the loop is entered when path is empty.
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if (!length) {
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length = 1;
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object = undefined;
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}
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while (++index < length) {
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var value = object == null ? undefined : object[toKey(path[index])];
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if (value === undefined) {
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index = length;
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value = defaultValue;
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}
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object = isFunction(value) ? value.call(object) : value;
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}
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return object;
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}
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module.exports = result;
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