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When to use IMG vs. CSS background-image?
...ze.
Use IMG
for multiple overlay images in IE6.
Use IMG with a z-index in order
to stretch a background image to fill its entire window.Note, this is no longer true with CSS3 background-size; see #6 below.
Using img instead of background-image can dramatically improve performance of animations ove...
Simple calculations for working with lat/lon and km distance?
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If you're using Java, Javascript or PHP, then there's a library that will do these calculations exactly, using some amusingly complicated (but still fast) trigonometry:
http://www.jstott.me.uk/jcoord/
...
UITableView is starting with an offset in iOS 7
...uiview. if the view shown in the user interface are placed not in the same order.
– Rinku
May 22 '14 at 4:56
2
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Using .sort with PyMongo
...er", 1), ("date", -1)])
The reason why this has to be a list is that the ordering of the arguments matters and dicts are not ordered in Python < 3.6
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Rails: around_* callbacks
...u yield to it, then continue execution. That's why it's called around
The order goes like this: before, around, after.
So, a typical around_save would look like this:
def around_save
#do something...
yield #saves
#do something else...
end
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Converting string from snake_case to CamelCase in Ruby
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In order to use these methods of Rails from pure Ruby, require "active_support/core_ext/string" is suffice, providing Rails is installed already.
– Masa Sakano
Jun 23 '18 at 2:03
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include antiforgerytoken in ajax post ASP.NET MVC
... +1, nice. I just split the @Html.AntiForgeryTokenForAjaxPost in two in order to get the token name in one hand and its value in the other. Otherwise the syntax highlight is all messed up. It ends up like this (removed the single-quotes from the returned result too, so that it behaves like any MV...
What's the difference between “Request Payload” vs “Form Data” as seen in Chrome dev tools Network t
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PHP is evil of course. The popularity of application/x-www-form-urlencoded is defined by the popularity of PHP.
– Brian Cannard
Apr 28 '16 at 10:17
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Is there a way to escape a CDATA end token in xml?
...er looking for something like a backslash equivalent (within strings in C, PHP, Java, etc). According to the rule quoted by ddaa, it seems like there's not such a thing.
– Juan Pablo Califano
Oct 21 '08 at 23:11
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Why does += behave unexpectedly on lists?
... operands and makes a new list containing those elements maintaining their order.
+= operator calls __iadd__ method on the list. It takes an iterable and appends all the elements of the iterable to the list in place. It does not create a new list object.
In class foo the statement self.bar +=...