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POPopulating javascript variable with JSON
 

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    <p>I'm using phone gap, and I want to read a file out with the phone gap file api. I can read the file. But when I put my JSON into a variable it only returns '[]'.</p> <pre><code>var json; function readFS(fileSystem) { fileSystem.root.getFile("readme.txt", {create: true}, readFileEntry, fail); } function readFileEntry(fileEntry) { fileEntry.file(gotFileread, fail); } function gotFileread(file){ readAsText(file); } function readAsText(file) { var reader = new FileReader(); reader.onloadend = function(evt) { console.log("Read as text"); console.log(evt.target.result); json = evt.target.result; // this returns only [] navigator.notification.alert(evt.target.result); // this returns the real JSON :o }; reader.readAsText(file); } </code></pre> <p>This is the json that's in readme.txt</p> <pre><code>{"games":[{"id":"2","name":"bartje","photo":"photo2.png","description":"kimpe","length":"is","totalDownloads":"0","totalFinished":"0","locations":[{"id":"3","name":"loc21","photo":"loc21.jpg","description":"loc21","FK_Game_id":"2","lat":"51.0000","long":"4.0000","status":"0"},{"id":"5","name":"loc22","photo":"loc22.jog","description":"locatie 22","FK_Game_id":"2","lat":"51.2330","long":"40.2222","status":"1"}]},{"id":"3","name":"aa","photo":"photo3.jPg","description":"aa","length":"aa","totalDownloads":"0","totalFinished":"3","locations":[{"id":"4","name":"loc4","photo":"loc4.jpg","description":"loc4","FK_Game_id":"3","lat":"51.2191","long":"4.4021","status":"0"}]}]} </code></pre> <p>I now can retrieve the data from the file and put it in a variable. Now my only problem is I can't use it as json like </p> <pre><code>json.games[0].id </code></pre> <p>I tried doing</p> <pre><code>json = eval(evt.target.result); </code></pre> <p>But that doesn't work :o</p>
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    1. COThis won't solve your problem... But once you get the json text correctly, you will need to eval() it into the json variable.
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