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How can I append a string to an existing field in MySQL?
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@Daniel How about updating the answer according to comments above?
– kiedysktos
Mar 28 '17 at 8:08
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Why this line xmlns:android=“http://schemas.android.com/apk/res/android” must be the first in the la
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Instead of calling android:id, the xml will use http://schemas.android.com/apk/res/android:id to be unique. Generally this page doesn't exist (it's a URI, not a URL), but sometimes it is a URL that explains the used namespace.
The namespace has pretty much the same uses as the package name in a...
git - merge conflict when local is deleted but file exists in remote
...it add path/to/file
After doing either of those to resolve the conflict, commit the merge.
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what does npm -D flag mean?
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The -D flag is the shortcut for: --save-dev. Source: https://docs.npmjs.com/cli/install
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How to keep the local file or the remote file during merge using Git and the command line?
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no, their meanings are reversed stackoverflow.com/q/2959443/995714 stackoverflow.com/q/29324812/995714 theirs would be my files and ours are the files in the remote branch
– phuclv
Mar 12 '17 at 14:55
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iPhone Simulator - Simulate a slow connection?
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An app called SpeedLimit
https://github.com/mschrag/speedlimit
Works great.
chris.
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Difference between $(document.body) and $('body')
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The first statement is not completely correct. They may refer to the same element. Usually even. But not always :). See my answer below.
– jvenema
Feb 28 '18 at 22:28
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Run a callback only if an attribute has changed in Rails
...nge_to_status_id?
private
def do_something
# ...
end
end
The commit that changed ActiveRecord::Dirty is here: https://github.com/rails/rails/commit/16ae3db5a5c6a08383b974ae6c96faac5b4a3c81
Here is a blog post on these changes: https://www.ombulabs.com/blog/rails/upgrades/active-record...
How to obtain the last path segment of a URI
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is that what you are looking for:
URI uri = new URI("http://example.com/foo/bar/42?param=true");
String path = uri.getPath();
String idStr = path.substring(path.lastIndexOf('/') + 1);
int id = Integer.parseInt(idStr);
alternatively
URI uri = new URI("http://example.com/foo/bar/42?param=tru...
Difference between subprocess.Popen and os.system
...en("mycmd" + " myarg", shell=True).wait()
The "improved" code looks more complicated, but it's better because once you know subprocess.Popen(), you don't need anything else. subprocess.Popen() replaces several other tools (os.system() is just one of those) that were scattered throughout three othe...