JSPM

chunked-file-reader

0.0.3
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    • License MIT

    Provides a large file reading as chunked

    Package Exports

    • chunked-file-reader

    This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (chunked-file-reader) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

    Readme

    ChunkdFileReader

    Reading a large file in the browser context as chunked.

    How to Use

    var fileElement= document.querySelector('input[type="file"]');
    fileElement.addEventListener('change', function(evt){
        // Create object
        var reader= new ChunkdFileReader();
    
        // Subscribe event listeners
        reader.subscribe('begin', function(evt){
            console.log('Start reading');
        });
        reader.subscribe('progress', function(evt){
            console.log('Progress ' + evt.done + ' / ' + evt.nchunks + ' chunks (' + (evt.done_ratio * 100).toFixed(2) + '%)');
        });
        reader.subscribe('chunk', function(evt){
            console.log('Read chunk: ' + new Uint8Array(evt.chunk));
        });
        reader.subscribe('end', function(evt){
            console.log('Done reading');
        });
    
        // Read it!
        reader.readChunks(evt.target.files[0]);
    });