31 lines
777 B
JavaScript
31 lines
777 B
JavaScript
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"use strict";
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var fs = {};
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fs.readFile = function(filename, options, callback) {
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// Note: options is the optional element here, not callback.
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if (arguments.length < 3) {
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callback = options;
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options = {};
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}
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if (filename[0] === '/')
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throw new Error("Don't use absolute paths!");
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var xhr = new XMLHttpRequest();
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xhr.open("GET", filename);
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if (options && options.encoding)
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xhr.overrideMimeType('text/plain; charset=' + options.encoding);
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else {
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xhr.overrideMimeType('text/plain');
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xhr.responseType = "arraybuffer";
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}
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xhr.onload = function() {
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if (xhr.status > 400)
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callback(new Error(xhr.statusText));
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else
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callback(undefined, xhr.response);
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};
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xhr.onerror = function(e) {
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callback(e);
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};
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xhr.send();
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};
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