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Add a new column to existing table in a migration

...e documentation is fairly thorough about this, and hasn't changed too much from version 3 to version 4. share | improve this answer | follow | ...
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How to define multiple name tags in a struct

I need to get an item from a mongo database, so I defined a struct like this 2 Answers ...
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How do I use InputFilter to limit characters in an EditText in Android?

...bleString sp = new SpannableString(sb); TextUtils.copySpansFrom((Spanned) source, start, sb.length(), null, sp, 0); return sp; } else { return sb; } } } private boolean isCharAllowed(char c) { ...
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Given two directory trees, how can I find out which files differ by content?

... directories are actually containing the .git folder, how can I exclude it from the compare? – Muhamed Cicak Mar 28 at 16:37 add a comment  |  ...
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How to remove unused C/C++ symbols with GCC and ld?

...executable size and -s removes the symbol table and relocation information from the executable. Sometimes - if small size is desired - playing around with different optimization flags may - or may not - have significance. For example toggling -ffast-math and/or -fomit-frame-pointer may at times sav...
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Check for null in foreach loop

... @Tom aside from one null check there's no penalty for the cases where the enumerator is not null. Avoiding that check while also ensuring that the enumerable is not null is impossible. The code above requires the Headers to a an IEnumer...
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Node.js setting up environment specific configs to be used with everyauth

...n mode : $ NODE_ENV=production node app.js In detail This solution is from : http://himanshu.gilani.info/blog/2012/09/26/bootstraping-a-node-dot-js-app-for-dev-slash-prod-environment/, check it out for more detail. shar...
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Undock Chrome Developer Tools

...er button You can also undock/dock-to-left/dock-to-right/dock-to-bottom from the Command Menu. Press Cmd+Shift+P (Mac) or Cmd+Shift+P (Windows, Linux, Chrome OS) to open the Command Menu, then start typing bottom/left/right/undock. DevTools documentation on docking: https://developers.google.c...
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Create folder with batch but only if it doesn't already exist

...ndonk This works on Windows 7 and Windows Server 2012 as far as I can tell from testing, and I'd be very surprised if it doesn't work at least back to XP and up to Windows 10. Can you provide the conditions when this doesn't work? – jpmc26 Mar 10 '16 at 19:00 ...
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How to Configure SSL for Amazon S3 bucket

...t possible directly with S3, but you can create a Cloud Front distribution from you bucket. Then go to certificate manager and request a certificate. Amazon gives them for free. Ones you have successfully confirmed the certification, assign it to your Cloud Front distribution. Also remember to set t...