What should be done if vue passes different parameters to get different values?

//api.commonItem 
getCommonItem (value) {
        let variable = ""
        api.commonItem({value: value}).then(res => {
          variable = res.data.name
          console.log("",variable)
        })
        console.log("",variable)
        return variable
      },

clipboard.png

I called the getCommonItem method twice and passed the parameters twice. I wanted to get a different value, but the second time it was empty. Is there something wrong with the logic? please help me to see if the request has not been completed. Variable has been return

.
Vue.js
Mar.16,2021

if you encapsulate commonItem , you should know that a Promise is returned. This is an asynchronous operation. If you want variable to be obtained by getCommonItem callers, either change it to the classic callback :

. 
getCommonItem(value) {
    return api.commonItem({value: value}).then(res => {
        let variable = res.data.name
        console.log("",variable)
        return Promise.resolve(variable)
    })
}

getCommonItem(...)
    .then(variable => {
        console.log('', variable)
    })

Previous: How does a developer test ie9 compatibility on mac?

Next: If you have doubts about the interpretation of the events npm module, please help sort out the train of thought.

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
© 2021 CodesHelper
Advertising Contact us About us
Menu