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28 lines
1.0 KiB
28 lines
1.0 KiB
var baseMerge = require('./_baseMerge'), |
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isObject = require('./isObject'); |
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/** |
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* Used by `_.defaultsDeep` to customize its `_.merge` use to merge source |
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* objects into destination objects that are passed thru. |
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* |
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* @private |
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* @param {*} objValue The destination value. |
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* @param {*} srcValue The source value. |
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* @param {string} key The key of the property to merge. |
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* @param {Object} object The parent object of `objValue`. |
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* @param {Object} source The parent object of `srcValue`. |
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* @param {Object} [stack] Tracks traversed source values and their merged |
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* counterparts. |
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* @returns {*} Returns the value to assign. |
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*/ |
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function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { |
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if (isObject(objValue) && isObject(srcValue)) { |
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// Recursively merge objects and arrays (susceptible to call stack limits). |
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stack.set(srcValue, objValue); |
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baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); |
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stack['delete'](srcValue); |
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} |
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return objValue; |
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} |
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module.exports = customDefaultsMerge;
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