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MongoDB: update every document on one field

...n, for your example, the <update> is: { $set: { lastLookedAt: Date.now() / 1000 } } However, depending on your version of MongoDB, the query will look different. Regardless of version, the key is that the empty condition {} will match any document. In the Mongo shell, or with any MongoDB ...
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Defining custom attrs

... only xmlns:android="http://schemas.android.com/apk/res/android". You must now also add xmlns:whatever="http://schemas.android.com/apk/res-auto". Example: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:whatever="ht...
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How can I resolve “Error: No developer directory found at /Developer”?

...using a script to build (and then deploy through Testflight) my app. But I now receive this error: 4 Answers ...
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What is your favorite C programming trick? [closed]

... "normals.txt" }; (more or less, I don't have the code handy to check it now). Since then, a new world of creative use of the preprocessor opened in front of my eyes. I no longer include just headers, but entire chunks of code now and then (it improves reusability a lot) :-p Thanks John Carmack!...
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Android Studio says “cannot resolve symbol” but project compiles

...studio to load everything. It will give you some errors, ignore those. Now go to your java file and android studio will suggest you import import android.support.v4.app.FragmentActivity; Import it, then go back to Open Module Settings and change the compile sdk version back to what it was...
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Save icon: Still a floppy disk? [closed]

...once people start forgetting what they look like (or never knew). The icon nowadays represents the concept of saving more than it represents floppy disks anyway. share | improve this answer ...
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How to run only one task in ansible playbook?

... role/stuff/tasks/main.yml - name: do stuff when: stuff|default(false) Now, this task will not fire by default, but only if I set the stuff=true $ ansible-playbook -e '{"stuff":true}' or in a playbook: roles: - {"role":"stuff", "stuff":true} ...
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How to dynamically load a Python class

... Thanks I think this is the best way. Now I only need the best way to split the string 'my_pakcage.my_module.my_class' into mod_name, klass_name but I guess I can figure that out :) – pjesi Feb 13 '09 at 22:42 ...
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force client disconnect from server with socket.io and nodejs

... Edit: This is now possible You can now simply call socket.disconnect() on the server side. My original answer: This is not possible yet. If you need it as well, vote/comment on this issue. ...
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Simpler way to put PDB breakpoints in Python code?

... whatever other languages you use. 2019 Update (Python 3.7+) Python 3.7+ now has the builtin breakpoint() which can replace the previous import pdb; pdb.set_trace() in vim. It still works the same. share | ...