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Restrict varchar() column to specific values?
...cify, for example 4 distinct values for a varchar column in MS SQL Server 2008?
4 Answers
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How do I use the new computeIfAbsent function?
...g a map and putting the values in it for the base cases, namely, fibonnaci(0) and fibonacci(1):
private static Map<Integer,Long> memo = new HashMap<>();
static {
memo.put(0,0L); //fibonacci(0)
memo.put(1,1L); //fibonacci(1)
}
And for the inductive step all we have to do is redef...
HashSet versus Dictionary w.r.t searching time to find if an item exists
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HashSet vs List vs Dictionary performance test, taken from here.
Add 1000000 objects (without checking duplicates)
Contains check for half the objects of a collection of 10000
Remove half the objects of a collection of 10000
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How can I tell gcc not to inline a function?
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150
You want the gcc-specific noinline attribute.
This function attribute prevents a
function ...
Go to first line in a file in vim?
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kenorb
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answered Mar 31 '11 at 23:00
LazerLazer
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How can I download HTML source in C#
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edited May 30 '18 at 10:37
Hakan Fıstık
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Creating an empty file in Ruby: “touch” equivalent?
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edited Mar 27 '13 at 23:04
answered Nov 11 '11 at 22:14
D...
PostgreSQL query to return results as a comma separated list
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209
SELECT string_agg(id::text, ',') FROM table
Requires PostgreSQL 9.0 but that's not a problem.
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How to show Page Loading div until the page has finished loading?
...d the style class for the div and image to your CSS:
#loading {
width: 100%;
height: 100%;
top: 0;
left: 0;
position: fixed;
display: block;
opacity: 0.7;
background-color: #fff;
z-index: 99;
text-align: center;
}
#loading-image {
position: absolute;
top: 100px;
left: 240...
Remove element of a regular array
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204
If you don't want to use List:
var foos = new List<Foo>(array);
foos.RemoveAt(index);
re...