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Use of alloc init instead of new
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@VinceO'Sullivan, good point. This means if one wants to make init unavailable, as in a singleton class, one should disable new as well. I won't touch here on whether singletons are good or bad.
– user3099609
Mar 24 '15 a...
Select statement to find duplicates on certain fields
...m going to assume that by "for every record except for the first one", you mean that there is another "id" column that we can use to identify which row is "first".
SELECT id
, field1
, field2
, field3
FROM
(
SELECT id
, field1
, field2
, field3
, RANK...
When are you truly forced to use UUID as part of the design?
...ogy to the probability myself, as it seemed the OP didn't quite grasp it's meaning, but you seem to have done that.
– Noldorin
Mar 31 '09 at 21:15
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ab load testing
...rs do by nature. You don't need to pass a value for -k as it it "boolean" (meaning: it indicates that you desire for your test to use the Keep Alive header from HTTP and sustain the connection). Since browsers do this and you're likely to want to simulate the stress and flow that your site will have...
Group a list of objects by an attribute : Java
... public int compare(ProductBean p1, ProductBean p2) {
// this mean the first column is tied in thee two rows
if (p1.price > p2.price) {
return 1;
}
if (p1.price < p2.price) {
return -1;
}
r...
Best way to define private methods for a class in Objective-C
... as a private method in Objective-C. However, starting in Objective-C 2.0 (meaning Mac OS X Leopard, iPhone OS 2.0, and later) you can create a category with an empty name (i.e. @interface MyClass ()) called Class Extension. What's unique about a class extension is that the method implementations mu...
In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
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@user691859 I'm not sure what you mean by "using the <p> tag in Markdown can strip the CSS of a regular paragraph". Markdown wraps paragraphs in <p> tags, and ignores those that already have <p> tags. I can't see how this would affect CSS......
Get the current fragment object
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doesn't this solution means that you have to put same tag for multiple fragments? otherwise how would you know fragmentTag is the tag for the current fragment?
– Thupten
Jun 26 '13 at 19:39
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What is the meaning of polyfills in HTML5?
What is the meaning of polyfills in HTML5? I saw this word in many sites about HTML5, e.g. HTML5-Cross-Browser-Polyfills.
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AngularJS - Binding radio buttons to models with boolean values
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You mean the data- prefix I think... The data- prefix is to make the HTML valid (although without that also all modern browsers handle the HTML correctly)
– kumarharsh
Dec 19 '14 at 6:07
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