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浅谈Heatmap：网页热点图生成原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ment).ready(function() {
$(document).mousedown(function(e) {
if (e.clientX >= $(window).width() || e.clientY >= $(window).height()) {
return;
}
$.get("/path/to/a/empty/html/file", {
page_x : e.pageX,
page_y : e.page...
Random record in ActiveRecord
...ND() or RANDOM() (depending on the database). It's not a performance issue if you don't have a performance issue.
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JavaScript error (Uncaught SyntaxError: Unexpected end of input)
... vim/neovim, configured to run jshint every time I save a JavaScript file. If I have syntax errors, I'll see warning/error symbols in vim's/neovim's gutter. When I put my cursor on that line, the vim/neovim command line will show a message saying what the error is.
– trusktr
...
Compression/Decompression string with C#
...r1);
}
Remember that Zip returns a byte[], while Unzip returns a string. If you want a string from Zip you can Base64 encode it (for example by using Convert.ToBase64String(r1)) (the result of Zip is VERY binary! It isn't something you can print to the screen or write directly in an XML)
The vers...
Automatically plot different colored lines
...l kernel density estimations on the same graph, and I want them to all be different colors. I have a kludged solution using a string 'rgbcmyk' and stepping through it for each separate plot, but I start having duplicates after 7 iterations. Is there an easier/more efficient way to do this, and wit...
How can I use Spring Security without sessions?
...
It seems to be even easier in Spring Securitiy 3.0. If you're using namespace configuration, you can simply do as follows:
<http create-session="never">
<!-- config -->
</http>
Or you could configure the SecurityContextRepository as null, and nothing wou...
Android: Specify two different images for togglebutton using XML
...from the top, stopping at the first state whose conditions are all met, so if default is at the top, it'll never get past that drawable.
– Travis
Apr 5 '12 at 20:20
1
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How can I select all elements without a given class in jQuery?
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If want to check two class use as .not(".completed, .current")
– Nishantha
Aug 5 '15 at 12:16
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Using awk to remove the Byte-order mark
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So: awk '{if(NR==1)sub(/^\xef\xbb\xbf/,"");print}' INFILE > OUTFILE and make sure INFILE and OUTFILE are different!
– Steve Clay
Feb 12 '10 at 20:30
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Setting HttpContext.Current.Session in a unit test
...lic static HttpContextBase Current
{
get
{
if (m_context != null)
return m_context;
if (HttpContext.Current == null)
throw new InvalidOperationException("HttpContext not available");
return new HttpContextWrapp...