Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
923 views
in Technique[技术] by (71.8m points)

angular - Property 'files' does not exist on type 'EventTarget' error in typescript

I am trying to access the value of the input file from my ionic 2 application but still I'm facing the issue of property files does not exist on type 'EventTarget'. As it is properly working in js but not in typescript. The code is given below:

  document.getElementById("customimage").onchange= function(e?) {
            var files: any = e.target.files[0]; 
              EXIF.getData(e.target.files[0], function() {
                  alert(EXIF.getTag(this,"GPSLatitude"));
              });
          }

Please help me solve this issue as it is not building my ionic 2 application.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

You can cast it as a HTMLInputElement:

document.getElementById("customimage").onchange = function(e: Event) {
    let file = (<HTMLInputElement>e.target).files[0];
    // rest of your code...
}

Update:

You can also use this:

let file = (e.target as HTMLInputElement).files[0];

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...