JavaScript調用API的幾種方式

const request = new XMLHttpRequest();
request.open("GET","https://jsonplaceholder.typicode.com/users");
request.send();
request.onload = () => {
    console.log(request);
    if(request.status == 200){
        console.log(JSON.parse(request.response));
    }else{
        console.log(`error ${request.status}`)
    }
}

　　

二 fetch

fetch('https://jsonplaceholder.typicode.com/users')
.then(response =>{
    return response.json();
}).then(json=>{
    console.log(json)
})