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Add table row in jQuery
... always be a tbody in the DOM; this is true, but only if there is at least one row. If you have no rows, there will be no tbody unless you have specified one yourself.
DaRKoN_ suggests appending to the tbody rather than adding content after the last tr. This gets around the issue of having no rows,...
Class with single method — best approach?
...erforming the function, it can be destroyed. Is there any reason to prefer one of these approaches?
15 Answers
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What are the differences between a HashMap and a Hashtable in Java?
...ions, as unsynchronized Objects typically perform better than synchronized ones.
Hashtable does not allow null keys or values. HashMap allows one null key and any number of null values.
One of HashMap's subclasses is LinkedHashMap, so in the event that you'd want predictable iteration order (which ...
Regular expression for a hexadecimal number?
...starting with a 0, following by either a lower or uppercase x, followed by one or more characters in the ranges 0-9, or a-f, or A-F
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What are Vertex Array Objects?
...e VAO again, all the those attributes and pointers also become current. So one glBindVertexArray call is equivalent to all the code previously needed to set up all the attributes. It's handy for passing geometry around between functions or methods without having to create your own structs or objects...
How to benchmark efficiency of PHP script
...to run it there (as long as you read the instructions). The results of any one single page load aren't going to be as relevant as seeing how your code performs while the server is getting hammered to do a million other things as well and resources become scarce. This raises another question: are you...
Add vertical whitespace using Twitter Bootstrap?
...{sides}-{breakpoint}-{size} for sm, md, lg, and xl.
Where property is one of:
m - for classes that set margin
p - for classes that set padding
Where sides is one of:
t - for classes that set margin-top or padding-top
b - for classes that set margin-bottom or padding...
How many characters can UTF-8 encode?
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UTF-8 does not use one byte all the time, it's 1 to 4 bytes.
The first 128 characters (US-ASCII) need one byte.
The next 1,920 characters need two bytes to encode. This covers the remainder of almost all Latin alphabets, and also Greek...
Extract value of attribute node via XPath
...:
//child/@name
you can select name attribute of all child nodes in one go.
name="Child_2"
name="Child_4"
name="Child_1"
name="Child_3"
name="Child_1"
name="Child_2"
name="Child_4"
name="Child_3"
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Twig for loop for arrays with keys
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This example doesn't iterate over the array keys, see the ones above
– user2019515
May 12 '14 at 1:48
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