mirror of
https://github.com/vale981/Vulcan
synced 2025-03-06 18:11:40 -05:00
75 lines
1.3 KiB
JavaScript
75 lines
1.3 KiB
JavaScript
// see https://gist.github.com/furf/3208381
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_.mixin({
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// Get/set the value of a nested property
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deep: function (obj, key, value) {
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var keys = key.replace(/\[(["']?)([^\1]+?)\1?\]/g, '.$2').replace(/^\./, '').split('.'),
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root,
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i = 0,
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n = keys.length;
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// Set deep value
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if (arguments.length > 2) {
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root = obj;
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n--;
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while (i < n) {
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key = keys[i++];
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obj = obj[key] = _.isObject(obj[key]) ? obj[key] : {};
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}
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obj[keys[i]] = value;
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value = root;
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// Get deep value
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} else {
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while ((obj = obj[keys[i++]]) !== null && i < n) {};
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value = i < n ? void 0 : obj;
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}
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return value;
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}
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});
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// Usage:
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//
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// var obj = {
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// a: {
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// b: {
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// c: {
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// d: ['e', 'f', 'g']
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// }
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// }
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// }
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// };
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//
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// Get deep value
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// _.deep(obj, 'a.b.c.d[2]'); // 'g'
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//
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// Set deep value
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// _.deep(obj, 'a.b.c.d[2]', 'george');
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//
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// _.deep(obj, 'a.b.c.d[2]'); // 'george'
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_.mixin({
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pluckDeep: function (obj, key) {
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return _.map(obj, function (value) { return _.deep(value, key); });
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}
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});
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_.mixin({
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// Return a copy of an object containing all but the blacklisted properties.
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unpick: function (obj) {
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obj = obj || {};
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return _.pick(obj, _.difference(_.keys(obj), _.flatten(Array.prototype.slice.call(arguments, 1))));
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}
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});
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