how to store multiple encoded values in multiple variables

Question

I have given multiple upload file option but it is storing everything in one variable but i am not getting how to store seperate file encoded value in a seperate variable. It should create variable and store encoded value according to file upload.

<html>
<body>

<input id="inputFileToLoad" type="file" onchange="encodeImageFileAsURL();" multiple />
<div id="imgTest"></div>
<script type='text/javascript'>

    function encodeImageFileAsURL(index) {
        var filesSelected = document.getElementById("inputFileToLoad").files;
        index = index || 0;
        if (filesSelected.length > 0 && index < filesSelected.length) {
            var fileToLoad = filesSelected[index];

            var fileReader = new FileReader();

            fileReader.onloadend = function(fileLoadedEvent) {
                var srcData = fileLoadedEvent.target.result; // <--- data: base64

                var newImage = document.createElement('img');
                newImage.src = srcData;

                document.getElementById("imgTest").appendChild(newImage);
                if (index < filesSelected.length) {
                    encodeImageFileAsURL(index + 1)
                }
                console.log(srcData);    
            }
            fileReader.readAsDataURL(fileToLoad);
        }
    }
</script>
</body>
</html>

Yosra Nagati · Accepted Answer · 2016-08-10 09:16:34Z

1

You may save the variable into an array, then access it whenever you want.

    var sourceArray = new Array(); // put this before the function delaction 


                fileReader.onloadend = function (fileLoadedEvent) {
                    var srcData = fileLoadedEvent.target.result; // <--- data: base64

                    sourceArray.push(srcData);

                    var newImage = document.createElement('img');
                    newImage.src = srcData;

                    document.getElementById("imgTest").appendChild(newImage);
                    if (index < filesSelected.length) {
                        encodeImageFileAsURL(index + 1)
                    }}

                    console.log(sourceArray);

edited Aug 10, 2016 at 9:16

answered Aug 10, 2016 at 9:06

Yosra Nagati

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3 Comments

Yosra Nagati Over a year ago

there is a missed } brackets , also add the array declaration outside the function , I tried and it works fines @user5397448

Yosra Nagati Over a year ago

@user5397448 so you did not push the srcData into the array. sourceArray.push(srcData); it is so direct and simple .

Vinay Over a year ago

Easy approach nice one

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