get file from url javascript code example

Example 1: js get file content from url

// create a variable called content containing the content from https://URL/file
fetch("https://URL/file").then((r)=>{r.text().then((d)=>{let CONTENT = d})})

Example 2: get filename from url js

var filename = location.pathname.substr(location.pathname.lastIndexOf("/")+1);

Example 3: create file object from url typescript

fetch('//my-image-url')
      .then((e) => {
        return e.blob()
      })
      .then((blob) => {
        let b: any = blob
        b.lastModifiedDate = new Date()
        b.name = ''
        return b as File
      })
// Promise returning a File Object
// (usefull for previewing image in updating forms)

Example 4: javascript read file from url

// read text from URL location
function getText(){
    var request = new XMLHttpRequest();
    request.open('GET', 'http://www.xxxxx.com/pocket.txt', true);
    request.send(null);
    request.onreadystatechange = function () {
        if (request.readyState === 4 && request.status === 200) {
            var type = request.getResponseHeader('Content-Type');
            if (type.indexOf("text") !== 1) {
                return request.responseText;
            }
        }
    }
}