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How to sum array of numbers in Ruby?
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Try this:
array.inject(0){|sum,x| sum + x }
See Ruby's Enumerable Documentation
(note: the 0 base case is needed so that 0 will be returned on an empty array instead of nil)
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Insert a line break in mailto body
...break into my mailto body.
I tried %0A, %0D and %0D%0A. Nothing worked for me.
I tested on Gmail, Yahoo, Apple Mail, Outlook 2010, Outlook.com and Thunderbird with Google Chrome on Mac OSX.
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How to change a TextView's style at runtime
...xml version="1.0" encoding="utf-8"?>
<resources>
<style name="boldText">
<item name="android:textStyle">bold|italic</item>
<item name="android:textColor">#FFFFFF</item>
</style>
<style name="normalText">
<ite...
When to use static vs instantiated classes
...tanciated class where each object has data on its own (like a user has a name)
use a static class when it's just a tool that works on other stuff (like, for instance, a syntax converter for BB code to HTML ; it doesn't have a life on its own)
(Yeah, I admit, really really overly-simplified...)
On...
Programmatically update widget from activity/service/receiver
...y to trigger an update of my widget from the main activity. Isn't there some general intent I can broadcast?
8 Answers
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How can I make a div stick to the top of the screen once it's been scrolled to?
...at once the page has been scrolled enough to contact its top boundary, becomes fixed in place and scrolls with the page.
21...
Eclipse Android Plugin — libncurses.so.5
...32-libstdc++5 lib32-ncurses lib32-gcc-libs :)
– Cheezmeister
May 7 '13 at 2:55
quite amazed how after I had to switch ...
Problems with pip install numpy - RuntimeError: Broken toolchain: cannot link a simple C program
...gly, it appears to work
sudo ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future pip install --upgrade numpy
Note that if you are getting this error for a package other than numpy, (such as lxml) specify that package name instead of numpy at the end of the commnd.
I saw a simi...
unix diff side-to-side results?
...2
Test
$ cat a $ cat b
hello hello
my name my name
is me is you
Let's compare them:
$ diff -y a b
hello hello
my name ...
Sending multipart/formdata with jQuery.ajax
...ata,
cache: false,
contentType: false,
processData: false,
method: 'POST',
type: 'POST', // For jQuery < 1.9
success: function(data){
alert(data);
}
});
It’s imperative that you set the contentType option to false, forcing jQuery not to add a Content-Type h...