for example:
var arr = ["image", "url"]
arr.forEach(key => {
url = url[key]
})
console.log(url) what type of numerical printing should this url be so that he will not report an error?
for example:
var arr = ["image", "url"]
arr.forEach(key => {
url = url[key]
})
console.log(url) what type of numerical printing should this url be so that he will not report an error?
Note: url is constantly accessed downwards in the code, which means that url must be an object
1. If arr has a lot of content, the value of url is meaningless.
2. If arr has only two values, then url is a secondary object, for example:
{
image: {
url: 'http://xxxx'
},
}Previous: What does the url of req get in express's use method?
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