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Is there a better way to find out if a local git branch exists?
... or nothing if it doesn't.
Assign it to a variable and check for an empty string.
exists=`git show-ref refs/heads/<branch-name>`
if [ -n "$exists" ]; then
echo 'branch exists!'
fi
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How to run multiple shells on Emacs
...e"
(interactive);; "Prompt\n shell name:")
(let ((shell-name (read-string "shell name: " nil)))
(shell (concat "*" shell-name "*"))))
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How to get thread id from a thread pool?
...rt java.util.concurrent.*;
class ThreadIdTest {
public static void main(String[] args) {
final int numThreads = 5;
ExecutorService exec = Executors.newFixedThreadPool(numThreads);
for (int i=0; i<10; i++) {
exec.execute(new Runnable() {
public void run() {
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Inspecting standard container (std::map) contents with gdb
... Its also a bit frustrating that commands like "plist foo std::string" give syntax errors. It appears that the value_type can't contain any punctuation.
– Bklyn
Jan 9 '09 at 21:49
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AI2 Keep Awake
...ly reduced by using this extension. Do not set WakeLocks if you do not really need them, use them as rarely as possible and release them as soon as possible. If actions are to be performed only occasionally, it is not necessary for the CPU to be constantly active. Instead, an alarm can be use...
What is the maximum size of a web browser's cookie's key?
...on storage planning without implementing a complex limiter algorithm, this string is 4096 ASCII character bytes:
"abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabc...
Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
... a MultiIndexed columned dataframe).
You also get different statistics for string data. Here's an example,
df2 = df.assign(D=list('aaabbccc')).sample(n=100, replace=True)
with pd.option_context('precision', 2):
display(df2.groupby(['A', 'B'])
.describe(include='all')
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Django template tag to truncate text
...mplate filter, that add "..." to the end of (last word of) the (truncated) string as well:
from django import template
register = template.Library()
@register.filter("truncate_chars")
def truncate_chars(value, max_length):
if len(value) > max_length:
truncd_val = value[:max_length]
...
Break when a value changes using the Visual Studio debugger
... Even if auto implemented property is in one line e.g. public string UserName { set; get; }. User can highlight getter or setter and can press F9 to add breakpoint
– Abdul Rauf
Jul 15 '16 at 12:41
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Capture Stored Procedure print output in .NET
...myConnection_InfoMessage(object sender, SqlInfoMessageEventArgs e)
{
myStringBuilderDefinedAsClassVariable.AppendLine(e.Message);
}
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