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What does {0} mean when initializing an object?
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Why is there no xrange function in Python3?
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178
Some performance measurements, using timeit instead of trying to do it manually with time.
Fi...
php is null or empty?
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edited Dec 11 '19 at 23:39
kkurian
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How to go about formatting 1200 to 1.2k in java
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162
+100
Here i...
Add unique constraint to combination of two columns
...TER TABLE dbo.yourtablename
ADD CONSTRAINT uq_yourtablename UNIQUE(column1, column2);
or
CREATE UNIQUE INDEX uq_yourtablename
ON dbo.yourtablename(column1, column2);
Of course, it can often be better to check for this violation first, before just letting SQL Server try to insert the row and...
Best way to find if an item is in a JavaScript array? [duplicate]
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As of ECMAScript 2016 you can use includes()
arr.includes(obj);
If you want to support IE or other older browsers:
function include(arr,obj) {
return (arr.indexOf(obj) != -1);
}
EDIT:
This will not work on IE6, 7 or 8 though. The bes...
Comparing two byte arrays in .NET
...numerable.SequenceEqual method.
using System;
using System.Linq;
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var a1 = new int[] { 1, 2, 3};
var a2 = new int[] { 1, 2, 3};
var a3 = new int[] { 1, 2, 4};
var x = a1.SequenceEqual(a2); // true
var y = a1.SequenceEqual(a3); // false
If you can't use .NET 3.5 for some reason, your method is ...
Zooming MKMapView to fit annotation pins?
... MKMapView and have added a number of annotation pins to the map about a 5-10 kilometre area. When I run the application my map starts zoomed out to show the whole world, what is the best way to zoom the map so the pins fit the view?
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Why do people say there is modulo bias when using a random number generator?
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