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Determining whether jQuery has not found any element
...d */ } else { /* code if not found */ }
You're getting an object returned from that alert because jQuery (almost) always returns the "jQuery object" when you use it, which is a wrapper for the elements jQuery's found that permits method chaining.
...
Inline code highlighting in reStructuredText
...more I stumbled upon the document reStructuredText Interpreted Text Roles. From this document:
Interpreted text uses backquotes (`) around the text. An explicit role marker may optionally appear before or after the text, delimited with colons. For example:
This is `interpreted text` using the defau...
How to escape a JSON string to have it in a URL?
...r urlEncoding a js object.
the thread at https://groups.google.com/forum/?fromgroups=#!topic/nodejs/ivdZuGCF86Q
shows benchmarks for encoding and parsing.
Note: After testing, it looks like jsurl.js library uses ECMAScript 5 functions such as Object.keys, Array.map, and Array.filter. Therefore, it...
How is the “greater than” or “>” character used in CSS?
...he pair with a,
as shown below:
div.resources > a{color: white;}
(from http://www.xml.com/pub/a/2003/06/18/css3-selectors.html)
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The Ruby %r{ } expression
... variant ignores whitespace, making complex regexps more readable. Example from GitHub's Ruby style guide:
regexp = %r{
start # some text
\s # white space char
(group) # first group
(?:alt1|alt2) # some alternation
end
}x
...
Assign multiple columns using := in data.table, by group
... modify the following line in order to get two columns for each objectName from the dim output, rather than one column with two rows? data.table(objectName=ls())[,c("rows","cols"):=dim(get(objectName)),by=objectName] (I'm using data.table 1.8.11)
– dnlbrky
May ...
Xcode — what is $(SRCROOT)?
...
what about PROJECT_DIR? What's the difference from SRCROOT?
– Gon
Sep 4 '14 at 7:55
Don't...
How do I write a short literal in C++?
...the writers of the C99 standard got caught out by this. This is a snippet from Danny Smith's public domain stdint.h implementation:
/* 7.18.4.1 Macros for minimum-width integer constants
Accoding to Douglas Gwyn <gwyn@arl.mil>:
"This spec was changed in ISO/IEC 9899:1999 TC1; in IS...
Android: How to Programmatically set the size of a Layout
...
// Calculate titleBarHeight by deducting statusBarHeight from contentViewTop
int titleBarHeight = contentViewTop - statusBarHeight;
Log.i("MY", "titleHeight = " + titleBarHeight + " statusHeight = " + statusBarHeight + " contentViewTop = " + conte...
How do I disconnect all other users in tmux?
...ent process of the
client, typically causing it to exit.
either from <prefix>:followed by detach [options] or on the command line inside tmux with tmux detach [options]
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