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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Gordon
The problem I have is because it's a web app, it doesn't give me full control of the file system for safety (in fact I don't believe I ever know the full path of the file - so there's no way I can keep the file dialog pointing in the right place).
Not only that but as it uses cloud storage, there's a rate limit on the amount of times I can 'save' the current contents of the editor, so I can't just save it whenever you make an edit. Instead, I save it when you click 'upload'.
The best bet would be to save the code when you close the editor, but I haven't been able to do that successfully yet. As I've said before though, it's all Open Source, and all JavaScript so you're welcome to try and fix it yourself and contribute back.
The code that handles load and save is right here
It may be that using
chrome.fileSystem.chooseEntryfor loading files at least partially solves the different directory issues.