Created
September 30, 2016 18:54
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| // load a file from a URL | |
| function readTextFile(file, callback, errorback) { | |
| var rawFile = new XMLHttpRequest(); | |
| // only change this if you know you want to force a particular mime type and are having trouble | |
| // rawFile.overrideMimeType("application/json"); | |
| try { | |
| rawFile.open("GET", file, true); | |
| } catch (e) { | |
| console.error("Error opening file:", e); | |
| } | |
| rawFile.onreadystatechange = function() { | |
| // readyState 4 = done | |
| if (rawFile.readyState === 4 && rawFile.status == "200") { | |
| callback(rawFile.responseText); | |
| } else if (rawFile.readyState === 4 && rawFile.status == "404") { | |
| throw new Error("404 – can't load file", file); | |
| } else if (rawFile.readyState === 4 && rawFile.status == "401") { | |
| throw new Error("401 – can't load file", file); | |
| } else if (rawFile.readyState === 4) { | |
| throw new Error("Problem with "+ file); | |
| } | |
| }; | |
| rawFile.send(null); | |
| } | |
| readTextFile(url, function(text){ | |
| // do the stuff! | |
| try { | |
| data = JSON.parse(text); | |
| } catch(e) { | |
| console.warn('Error parsing json:', e); | |
| } | |
| } |
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