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Disable browser's back button
...rome 10, firefox 3.6 and IE9:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<title>Untitled Page</title>
<script type = "text/javascript" >
function...
Which maven dependencies to include for spring 3.0?
... following files have been resolved:
[INFO] aopalliance:aopalliance:jar:1.0:compile
[INFO] commons-logging:commons-logging:jar:1.1.1:compile
[INFO] org.springframework:spring-aop:jar:3.1.2.RELEASE:compile
[INFO] org.springframework:spring-asm:jar:3.1.2.RELEASE:compile
[INFO] org.sprin...
Summarizing multiple columns with dplyr? [duplicate]
....6 3.00
# 2 2 4.25 2.75 4.0 3.75
# 3 3 3.00 5.00 1.0 2.00
You can also have multiple functions.
df %>% group_by(grp) %>%
summarise_at(.vars = letters[1:2],
.funs = c(Mean="mean", Sd="sd"))
# A tibble: 3 x 5
# grp a_Mean b_Mean a_Sd b_S...
How do I force Postgres to use a particular index?
... at PostgresConf 2018, random_page_cost should be set to something between 1.0 and 2.0 for solid-state drives.
2) Cached data
If the required index data is already cached in RAM, an index scan will always be significantly faster than a sequential scan. The documentation says:
Correspondingly, ...
Google Maps: how to get country, state/province/region, city given a lat/long value?
...lt;html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no"/>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Reverse Geocoding</title>
<script type="text/javascript" src="http://maps.googleapis.com/maps/ap...
Measuring execution time of a function in C++
...nd-start)/CLOCKS_PER_SEC;
return 0;
}
Timing precision in seconds is 1.0/CLOCKS_PER_SEC
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iOS 7 TextKit - How to insert images inline with text?
...Scale {
if (floorf(inlineImageScale) == 0)
inlineImageScale = 1.0f;
// Create resized, tinted image matching font size and (text) color
UIImage *imageMatchingFont = [inlineImage imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
{
// Font size
NSDic...
What is ApplicationException for in .NET?
...
In the initial design, in .NET 1.0, it was planned that the framework itself will throw SystemException and derived; while user applications - will throw ApplicationException and derived.
But later, in .NET 2.0, that was dropped.
Thus derive from Excepti...
Storing money in a decimal column - what precision and scale?
...st fixed point decimal type in the language; Decimal only came in 'version 1.0' style (i.e. not fully implemented) in VB6/VBA6/Jet 4.0.
The rule of thumb for storage of fixed point decimal values is to store at least one more decimal place than you actually require to allow for rounding. One of the...
How do you automate Javascript minification for your Java web applications?
...ressor and include this file in different web projects.
<?xml version="1.0" encoding="UTF-8"?>
<!-- CSS and JS minifier. -->
<!DOCTYPE project>
<project name="minifier" basedir=".">
<property name="gc" value="compiler-r1592.jar" />
<property name="yc" value="yu...