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Fully custom validation error message with Rails
Using Rails I'm trying to get an error message like "The song field can't be empty" on save. Doing the following:
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How to pass data from 2nd activity to 1st activity when pressed back? - android
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SharedPreferences.onSharedPreferenceChangeListener not being called consistently
I'm registering a preference change listener like this (in the onCreate() of my main activity):
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How can I switch to a tag/branch in hg?
I followed the documentation in https://developer.mozilla.org/En/Developer_Guide/Source_Code/Mercurial
and downloaded FF source with:
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BLE协议—广播和扫描 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...接后点对点通信。广播访问地址广播包：广播包Access Address 固定为0x8E89BED6，广播包只能在广播信道（channel）上传输，即只能在37/38/39信道上传输（注：从蓝牙5.0开始广播包可以在其它信道上传输）。广播包发送给附近所有的obser...
How should I use Outlook to send code snippets?
As a programmer at a big corporation, I frequently send Outlook emails that contain code samples.
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How can I view all the git repositories on my machine?
Is there a way in which I can see all the git repositories that exist on my machine? Any command for that?
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How to test equality of Swift enums with associated values
I want to test the equality of two Swift enum values. For example:
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Convert a string to an enum in C#
What's the best way to convert a string to an enumeration value in C#?
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AngularJs $http.post() does not send data
...why the following statement does not send the post data to the designated url? The url is called but on the server when I print $_POST - I get an empty array. If I print message in the console before adding it to the data - it shows the correct content.
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