I have a request here, the code is as follows
ajax requests are asynchronous, so output 2 before 1
just put the actions you need to do into a successful callback
axios is asynchronous! Js is a single-threaded language. The browser only assigns one main thread to js to execute tasks (functions), but only one task at a time. These tasks form a queue of tasks waiting to be executed, and the asynchronous methods will not be executed until these tasks have been executed.
so execute 2 first, then 1! You can write console.log ('I am 3') console.log ('I am 4')
after console.log ('I am 2'). The result is 23 41
implement
getProjectForDetails() {
**return new Promise((resolve, reject) => {**
api.getProjectForDetails({"":""}).then(res => {
this.dataList = res.dataList
console.log('1')
resolve(this.dataList)
})
**})**
},
this.getProjectForDetails().then(res => {
console.log('2')
})
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