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20 lines
622 B
JavaScript
20 lines
622 B
JavaScript
define(['../object/merge'], function(merge) {
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/** Used as a safe reference for `undefined` in pre-ES5 environments. */
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var undefined;
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/**
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* Used by `_.defaultsDeep` to customize its `_.merge` use.
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*
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* @private
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* @param {*} objectValue The destination object property value.
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* @param {*} sourceValue The source object property value.
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* @returns {*} Returns the value to assign to the destination object.
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*/
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function mergeDefaults(objectValue, sourceValue) {
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return objectValue === undefined ? sourceValue : merge(objectValue, sourceValue, mergeDefaults);
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}
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return mergeDefaults;
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});
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