58 lines
1.5 KiB
JavaScript
58 lines
1.5 KiB
JavaScript
import lodash from "lodash";
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const defConfig = {a:{aa:1,bb:2},b:{c:2},d:[1,2,3],e:{ee:1,aa:2}}
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const newConfig = {a:{aa:1,bb:2},d:[5],e:{bb:2,ee:2,aa:2}}
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const result = { d: [ 5 ],e:{ee:2} }
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const load = {a:1,d:[5,1,2,3]}
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const DELETE = '____DELETE____'
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// lodash.mergeWith(defConfig,newConfig, (objValue, srcValue, key, object, source, stack) => {
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// console.log('stack', stack,'key',key)
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//
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// if (lodash.isArray(srcValue)) {
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// return srcValue
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// }
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// if(lodash.isEqual(objValue,srcValue)){
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// //如何删除
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// return DELETE
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// }
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// })
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function doMerge (defObj, newObj) {
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const defObj2 = { ...defObj }
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const newObj2 = {}
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lodash.forEach(newObj,(newValue,key)=>{
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// const newValue = newObj[key]
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const defValue = defObj[key]
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if (lodash.isEqual(newValue, defValue)) {
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delete defObj2[key]
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return
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}
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if (lodash.isArray(newValue)) {
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delete defObj2[key]
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newObj2[key] = newValue
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return
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}
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if (lodash.isObject(newValue)) {
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newObj2[key] = doMerge(defValue, newValue)
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delete defObj2[key]
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} else {
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// 基础类型，直接覆盖
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delete defObj2[key]
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newObj2[key] = newValue
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}
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})
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// defObj 里面剩下的是被删掉的
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lodash.forEach(defObj2, (defValue, key) => {
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newObj2[key] = null
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})
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return newObj2
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}
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console.log(doMerge(defConfig,newConfig))
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