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MySQL remove all whitespaces from the entire column
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203
To replace all spaces :
UPDATE `table` SET `col_name` = REPLACE(`col_name`, ' ', '')
To remo...
How to get thread id from a thread pool?
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answered Jul 20 '10 at 20:59
skaffmanskaffman
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Printf width specifier to maintain precision of floating-point value
...n:
#include <float.h>
int Digs = DECIMAL_DIG;
double OneSeventh = 1.0/7.0;
printf("%.*e\n", Digs, OneSeventh);
// 1.428571428571428492127e-01
But let's dig deeper ...
Mathematically, the answer is "0.142857 142857 142857 ...", but we are using finite precision floating point numbers.
Let...
How do I determine which iOS SDK I have?
...uild -showsdks
it gives something like this:
$> OS X SDKs:
OS X 10.8 -sdk macosx10.8
OS X 10.9 -sdk macosx10.9
iOS SDKs:
iOS 6.1 -sdk iphoneos6.1
iOS 7.0 -sdk iphoneos7.0
iOS Simulator...
How to force IntelliJ IDEA to reload dependencies from build.sbt after they changed?
...t)
– Kaushik Acharya
Nov 16 '16 at 10:46
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Wait for a process to finish
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+50
To wait for any process to finish
Linux:
tail --pid=$pid -f /dev/null
Darwin (requires that $pid has open files):
lsof -p $pid +r...
How do you clear a slice in Go?
...definition of 'clear'. One of the valid ones certainly is:
slice = slice[:0]
But there's a catch. If slice elements are of type T:
var slice []T
then enforcing len(slice) to be zero, by the above "trick", doesn't make any element of
slice[:cap(slice)]
eligible for garbage collection. This ...
Add missing dates to pandas dataframe
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270
You could use Series.reindex:
import pandas as pd
idx = pd.date_range('09-01-2013', '09-30-201...
How to quickly edit values in table in SQL Server Management Studio?
Aside from context menu -> "Edit Top 200 Rows" from Object Explorer, is there a quick way to open a table in Edit mode where I can just quickly modify the value of a cell?
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Invoke a callback at the end of a transition
...milar to jQuery) using D3.js . What I need to do is to set the opacity to 0 using transition() .
9 Answers
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