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What is considered a good response time for a dynamic, personalized web application? [closed]
...n about the same for thirty years [Miller 1968; Card et al. 1991]:
0.1 second is about the limit for having the user feel that the system is reacting instantaneously, meaning that no special feedback is necessary except to display the result.
1.0 second is about the limit for the user's fl...
What is the use of making constructor private in a class?
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130
Some reasons where you may need private constructor:
The constructor can only be accessed from...
Left align two graph edges (ggplot)
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+50
Try this,
gA <- ggplotGrob(A)
gB <- ggplotGrob(B)
maxWidth = grid::unit.pmax(gA$widths[2:5], gB$widths[2:5])
gA$widths[2:5]...
Position a CSS background image x pixels from the right?
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background-position: right 30px center;
It works in most browsers. See: http://caniuse.com/#feat=css-background-offsets for full list.
More information: http://www.w3.org/TR/css3-background/#the-background-position
...
Use PHP to create, edit and delete crontab jobs?
...user] [ -e | -l | -r ]
(default operation is replace, per 1003.2)
-e (edit user's crontab)
-l (list user's crontab)
-r (delete user's crontab)
-i (prompt before deleting user's crontab)
So,
$output = shell_exec('crontab -l');
fil...
How do I run a rake task from Capistrano?
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edited Jan 20 '17 at 10:47
Arturo Herrero
11.2k88 gold badges3636 silver badges7171 bronze badges
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Copy entire contents of a directory to another using php
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240
It seems that copy only handle single files. Here is a function for copying recursively I found ...
Git Diff with Beyond Compare
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edited Aug 14 '17 at 8:40
wonea
4,3171515 gold badges6868 silver badges131131 bronze badges
answered A...
Have Grunt generate index.html for different setups
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I recently discovered these Grunt v0.4.0 compatible tasks:
grunt-preprocess
Grunt task around preprocess npm module.
grunt-env
Grunt task to automate environment configuration for future tasks.
Below are snippets from my Gruntfile.js.
ENV ...
Is the SQL WHERE clause short-circuit evaluated?
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ANSI SQL Draft 2003 5WD-01-Framework-2003-09.pdf
6.3.3.3 Rule evaluation order
[...]
Where the precedence is not determined by the Formats or by
parentheses, effective evaluation of expressions is generally
performed from left to right. How...