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Get top 1 row of each group
I have a table which I want to get the latest entry for each group. Here's the table:
20 Answers
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Why does InetAddress.isReachable return false, when I can ping the IP address?
Why does isReachable return false ? I can ping the IP.
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How can I kill a process by name instead of PID?
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When i execute this, i got the error kill: invalid number 'pidof myprogram'. What is bad in here?.
– Brethlosze
Sep 20 '17 at 2:59
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How to set default values in Rails?
I'm trying to find the best way to set default values for objects in Rails.
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PHP Warning: PHP Startup: Unable to load dynamic library
I run a PHP script and get this error:
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Cannot set property 'innerHTML' of null
Why do I get an error or Uncaught TypeError: Cannot set property 'innerHTML' of null?
I thought I understood innerHTML and had it working before.
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How to replace a hash key with another key
...but you should be aware that using those two operators in ruby is not only error prone but also very dangerous when used wrong in validations against injections. See here for an explanation. Hope you don't mind spreading the awareness.
– Jorn van de Beek
Sep ...
How to deal with INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES without uninstall?
...place. Later while trying to test a new version of the app I ran into this error.
I fixed it by removing the app that was installed via Marketplace (just hold and drag to the trash). Thereafter I was able to deploy my development version without any issue.
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Codesign error: Certificate identity appearing twice
CodeSign error: Certificate identity 'iPhone Developer: XXXX (12345678)' appears more than once in the keychain. The codesign tool requires there only be one.
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ng-app vs. data-ng-app, what is the difference?
...ference between the two except that certain HTML5 validators will throw an error on a property like ng-app, but they don't throw an error for anything prefixed with data-, like data-ng-app.
So to answer your question, use data-ng-app if you would like validating your HTML to be a bit easier.
Fun f...