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Are there disadvantages to using a generic varchar(255) for all text-based fields?
...single-byte content (e.g. ascii or latin1 characters). And likewise utf8mb4 character set causes the string to pad out to four bytes per character in memory.
So a VARCHAR(255) in utf8 storing a short string like "No opinion" takes 11 bytes on disk (ten lower-charset characters, plus one byte for l...
Warn user before leaving web page with unsaved changes
...cript>
Custom messages not supported everywhere
Do note that Firefox 4 didn't support custom messages in this dialog. As of april 2016, Chrome 51 is being rolled out in which custom messages are also being removed.
Some alternatives exist elsewhere on this site, but I think a dialog like thi...
Automatic vertical scroll bar in WPF TextBlock?
... |
edited Mar 7 '12 at 12:43
answered Jul 28 '09 at 7:16
Dr...
Get the distance between two geo points
...poses very well.
– ZoltanF
Feb 11 '14 at 3:59
Which class i have to import for the Location import android.location.Lo...
Rerender view on browser resize with React
...hich just displays the window dimensions (like <span>Window size: 1024 x 768</span>):
import React from 'react';
class ShowWindowDimensions extends React.Component {
state = { width: 0, height: 0 };
render() {
return <span>Window size: {this.state.width} x {this.state.hei...
Turning multi-line string into single comma-separated
...
Dan FegoDan Fego
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What is the easiest way to remove all packages installed by pip?
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984
I've found this snippet as an alternative solution. It's a more graceful removal of libraries th...
Programmatically scroll a UIScrollView
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394
You can scroll to some point in a scroll view with one of the following statements in Objective-...
SQL WHERE condition is not equal to?
...|
edited May 27 '11 at 21:44
answered May 27 '11 at 19:47
P...
Apply multiple functions to multiple groupby columns
... similar dataframe as the one from above
df = pd.DataFrame(np.random.rand(4,4), columns=list('abcd'))
df['group'] = [0, 0, 1, 1]
df
a b c d group
0 0.418500 0.030955 0.874869 0.145641 0
1 0.446069 0.901153 0.095052 0.487040 0
2 0.843026 0.9361...