Javascript 递归函数未正确计算对象中的键
我有两个物体，长度相同，钥匙相同。唯一的区别是这些键可能具有不同的值。问题是，应该对这两个对象求值的方法都失败了——我花了好几个小时试图弄明白这一点 以下是原始参考资料：Javascript 递归函数未正确计算对象中的键,javascript,vue.js,Javascript,Vue.js,我有两个物体，长度相同，钥匙相同。唯一的区别是这些键可能具有不同的值。问题是，应该对这两个对象求值的方法都失败了——我花了好几个小时试图弄明白这一点 以下是原始参考资料： { "id":68, "article_id":12338, "article_reference_id":68, "article_reference_extraction_id":667320, "user_id":null, "file":"1238-230180-1-CE.doc
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这里是
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"lastName":"Arora"
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{
"firstName":"JA",
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{
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originalReferencearticle titlereferencearticle titleoriginalReferencereferenceoriginalReferenceTypeError：无法读取未定义的属性'articleTitle'。不知道发生了什么
以下是函数：
evaluateEmptyValues: function(reference, originalReference) {
var vm = this;
console.log('reference', reference);
console.log('Before --> ' + reference.data.articleTitle);
// Get keys and values of both reference objects
referenceLength = Object.entries(reference).length;
originalReferenceLength = Object.entries(originalReference).length;
if (referenceLength == originalReferenceLength) {
try {
for (var prop in reference) {
if (reference[prop] != undefined || reference[prop] != null) {
if (typeof (reference[prop]) == 'string' && reference[prop].trim() == '') {
reference[prop] = originalReference[prop];
}
if (typeof(reference[prop]) == 'object' && typeof(originalReference[prop]) == 'object') {
console.log('reference[prop]', reference[prop]);
console.log('originalReference[prop]', originalReference);
vm.evaluateEmptyValues(reference[prop], originalReference[prop]);
}
if (Array.isArray(reference[prop]) && typeof Array.isArray(originalReference[prop])) {
reference[prop].forEach((item, index) => vm.evaluateEmptyValues(item, originalReference[prop][index]));
}
} else {
reference[prop] = originalReference[prop];
}
}
} catch(err) {
console.log(err);
}
}
console.log('After --> ' + reference.data.articleTitle);
//
// console.log('Original --> ' + originalReference.data.articleTitle);
}
难道你不该排队吗
if (reference[prop] != undefined || reference[prop] != null) {
用一个和，像这样
if (reference[prop] != undefined && reference[prop] != null) {
让它和这个一起工作：
evaluateEmptyValues: function(reference, originalReference) {
var vm = this;
// Get keys and values of both reference objects
referenceLength = Object.entries(reference).length;
originalReferenceLength = Object.entries(originalReference).length;
if (referenceLength == originalReferenceLength) {
try {
for (var prop in reference) {
if (reference[prop] != undefined || reference[prop] != null) {
if (typeof (reference[prop]) == 'string' && reference[prop].trim() == '') {
reference[prop] = originalReference[prop];
}
if (typeof(reference[prop]) == 'object' && typeof(originalReference[prop]) == 'object') {
var length = Object.keys(reference[prop]).length;
for (var property in reference[prop]) {
if (originalReference[prop][property] != undefined) {
if (originalReference[prop][property] != null) {
// vm.evaluateEmptyValues(reference[prop][property], originalReference[prop][property]);
for (var i = 0; i < property.length; i++) {
if ((reference[prop][property] == null || reference[prop][property] == '') &&
originalReference[prop][property] != null) {
reference[prop][property] = originalReference[prop][property];
}
}
}
}
}
}
if (Array.isArray(reference[prop]) && typeof Array.isArray(originalReference[prop])) {
reference[prop].forEach((item, index) => vm.evaluateEmptyValues(item, originalReference[prop][index]));
}
} else {
if (originalReference[prop] != undefined) {
if (originalReference[prop] != null) {
reference[prop] = originalReference[prop];
}
}
}
}
} catch(err) {
console.log(err);
}
}
},
evaluatemptyvalues:函数（引用，原始引用）{
var vm=这个；
//获取两个参照对象的键和值
referenceLength=Object.entries（reference）.length；
originalReferenceLength=Object.entries（originalReference）.length；
if（referenceLength==原始referenceLength）{
试一试{
for（参考中的var prop）{
if（reference[prop]！=未定义| | reference[prop]！=null）{
if（typeof（reference[prop]）='string'&&reference[prop].trim（）{
参考[prop]=原始参考[prop]；
}
if（typeof（reference[prop]）==“object”&&typeof（originalReference[prop]）==“object”）{
变量长度=Object.keys（参考[prop]）.length；
for（引用[prop]中的var属性）{
if（原始引用[prop][property]！=未定义）{
if（原始引用[prop][property]！=null）{
//vm.EvaluateEmptyValue（参考[prop][property]，原始参考[prop][property]）；
对于（变量i=0；ivm.evaluatemptyvalues（项目，原始引用[prop][index]）；
}
}否则{
if（原始参考[prop]！=未定义）{
if（原始引用[prop]！=null）{
参考[prop]=原始参考[prop]；
}
}
}
}
}捕捉（错误）{
控制台日志（err）；
}
}
},
您希望最终得到什么？您是否正在尝试重复合并？因为有和没有，因为如果其中一个是真的，我希望它点击else
。可能reference[prop]==null
或reference[prop]==undefined
。。但是originalReference[prop]
可能不是，所以我想分配reference[prop]=originalReference[prop]。如果originalReference[prop]==null | | | originalReference[prop]==undefined
，那也没关系——没有任何变化