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- var Stack = require('./_Stack'),
- assignMergeValue = require('./_assignMergeValue'),
- baseFor = require('./_baseFor'),
- baseMergeDeep = require('./_baseMergeDeep'),
- isObject = require('./isObject'),
- keysIn = require('./keysIn'),
- safeGet = require('./_safeGet');
- function baseMerge(object, source, srcIndex, customizer, stack) {
- if (object === source) {
- return;
- }
- baseFor(source, function(srcValue, key) {
- if (isObject(srcValue)) {
- stack || (stack = new Stack);
- baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
- }
- else {
- var newValue = customizer
- ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)
- : undefined;
- if (newValue === undefined) {
- newValue = srcValue;
- }
- assignMergeValue(object, key, newValue);
- }
- }, keysIn);
- }
- module.exports = baseMerge;
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