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How to detect a textbox's content has changed
... The only downfall of 'input' is that it is not compatible with IE < 9.
– Catfish
Mar 21 '13 at 20:02
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How can I check if character in a string is a letter? (Python)
...r”, i.e., those with general category property being one of “Lm”, “Lt”, “Lu”, “Ll”, or “Lo”. Note that this is different from the “Alphabetic” property defined in the Unicode Standard.
In python2.x:
>>> s = u'a1中文'
>>> for char in s: print char, char...
how to prevent “directory already exists error” in a makefile when using mkdir
...oo.o bar.o baz.o)
$(OBJDIR)/%.o : %.c
$(COMPILE.c) $(OUTPUT_OPTION) $<
all: $(OBJS)
$(OBJS): | $(OBJDIR)
$(OBJDIR):
mkdir -p $(OBJDIR)
You should see here the usage of the | pipe operator, defining an order only prerequisite.
Meaning that the $(OBJDIR) target should be existent (ins...
How do I push amended commit to the remote Git repository?
... that to your master with git merge master
Update your master with the result with git push . HEAD:master
Push the result out.
Then people who were unfortunate enough to have based their work on the commit you obliterated by amending and forcing a push will see the resulting merge will see that yo...
How do you rotate a two dimensional array?
...] matrix, int n) {
int[,] ret = new int[n, n];
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
ret[i, j] = matrix[n - j - 1, i];
}
}
return ret;
}
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Copying text to the clipboard using Java
...fer.Clipboard;
And then put this snippet of code wherever you'd like to alter the clipboard:
String myString = "This text will be copied into clipboard";
StringSelection stringSelection = new StringSelection(myString);
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
clipbo...
Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
...the error will not show.
Add the following permission to your manifest:
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
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SQL Server : Columns to Rows
...
For those who want more nuts and bolts about UNPIVOT and/vs. APPLY, this 2010 blog post from Brad Schulz (and the follow-on) is (are) beautiful.
– ruffin
Jun 17 '15 at 21:09
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Why use the 'ref' keyword when passing an object?
... object to a method, why should I use the ref keyword? Isn't this the default behaviour anyway?
11 Answers
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Python Regex instantly replace groups
...
Have a look at re.sub:
result = re.sub(r"(\d.*?)\s(\d.*?)", r"\1 \2", string1)
This is Python's regex substitution (replace) function. The replacement string can be filled with so-called backreferences (backslash, group number) which are replaced wit...