如何迭代特定列表的属性
我是 JS 新手,我已经将 this 中的所有内容推送到我的 arraylist MyList
但我想将所有 title
属性推送到我的 titleList
我不知道是否需要使用增量获取所有标题,所以我发现了这个对我来说似乎合乎逻辑的例子:
...
const MyList = []
MyList.push(json_response)
const titleList = []
Object.keys(MyList).forEach(key => {
console.log(key, obj[title]);
titleList.push([title])
});
我发现了这个:
ReferenceError: Cannot access 'title' before initialization
at /Users/mac/Desktop/My_test/index.js:55:28
at Array.map (<anonymous>)
at /Users/mac/Desktop/My_test/index.js:42:33
Im new on JS and i already push all content from this on my arraylist MyList
but i wanted to get all title
property to push on my titleList
I don't know if i need to use incrementation get all title, so i found this exemple which seems logical to me :
...
const MyList = []
MyList.push(json_response)
const titleList = []
Object.keys(MyList).forEach(key => {
console.log(key, obj[title]);
titleList.push([title])
});
and i found this:
ReferenceError: Cannot access 'title' before initialization
at /Users/mac/Desktop/My_test/index.js:55:28
at Array.map (<anonymous>)
at /Users/mac/Desktop/My_test/index.js:42:33
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如果 json_response 有数据,此时标题尚未定义,请尝试此...
title is not defined at this point provided json_response has data try this...