javascript - How can I save an array object to file at run-time by chrome debug tools? - Stack Overflow

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I would like to extract an array object at run-time. For example:

var myarr = [1,2,3,4,5];

How can I save myarr at location /home/username/myarr.txt in Chrome DevTools?

I would like to extract an array object at run-time. For example:

var myarr = [1,2,3,4,5];

How can I save myarr at location /home/username/myarr.txt in Chrome DevTools?

• javascript
• google-chrome
• filesystems
• google-chrome-devtools

Share Improve this question Follow asked Mar 26, 2017 at 8:11 khakha 35344 silver badges1818 bronze badges 1

• Chrome doesn't allow writing to an arbitrary path in the real file system. Chrome extensions may use chrome.downloads API to save the files to paths inside the downloads directory and that's about all. – woxxom Commented Mar 26, 2017 at 9:18

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1 Answer 1

Sorted by: Reset to default 15

You can't download to a specific location, however you can download this file to your Chrome downloads path (where all your files are download in to). Try this (it is working for me):

var arr = [ 1, 2, 3 ];
var a = document.createElement('a');
var file = new Blob([ arr.toString() ], { type: 'text/plain' });

a.href = URL.createObjectURL(file);
a.download = 'bla';
a.click();

It should download a file named 'bla' containing the array values.

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