小编Ily*_*ail的帖子

我想将二进制文件中的二进制数据提取到字节数组中.我很难让它正常工作.

你可以在这里看到jsFiddle:https://jsfiddle.net/alexsuch/6aG4x/

HTML:

<div ng-controller="MainCtrl" class="container">
  <h1>Select text file</h1>
    <input type="file" on-read-file="showContent($fileContent)" />
    <div ng-if="content">
        <h2>File content is:</h2>
        <pre>{{ content }}</pre>
    </div>
</div>

Javascript代码:

var myapp = angular.module('myapp', []);

myapp.controller('MainCtrl', function ($scope) {
    $scope.showContent = function($fileContent) {
        $scope.content = $fileContent;
    };
});

myapp.directive('onReadFile', function ($parse) {
    return {
        restrict: 'A',
        scope: false,
        link: function(scope, element, attrs) {
            var fn = $parse(attrs.onReadFile);

            element.on('change', function(onChangeEvent) {
                var reader = new FileReader();

                reader.onload = function(onLoadEvent) {
                    scope.$apply(function() {
                        fn(scope, {$fileContent:onLoadEvent.target.result});
                    }); …