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How do you create a random string that's suitable for a session ID in PostgreSQL?
...ndom_string(length integer) returns text as
$$
declare
chars text[] := '{0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z}';
result text := '';
i integer := 0;
begin
if length < 0 then
raise exception 'Given le...
HTML5: number input type that takes only integers?
...n achieve with HTML only (documentation):
<input type="number" min="0" step="1"/>
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IEnumerable and Recursion using yield return
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answered Jan 13 '10 at 10:29
Marcin SeredynskiMarcin Seredynski
6,65722 gold badges1818 silver badges2626 bronze badges
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UIScrollView not scrolling
...entSize = contentView.frame.size; //sets ScrollView content size
Swift 4.0
let myScrollView
let contentView
// scrollview won't scroll unless content size explicitly set
myScrollView.addSubview(contentView)//if the contentView is not already inside your scrollview in your xib/StoryBoard doc
my...
How to Set Opacity (Alpha) for View in Android
...
answered May 25 '10 at 11:52
RoToRaRoToRa
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Fragment onResume() & onPause() is not called on backstack
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edited May 22 '14 at 10:06
Stephen Ostermiller
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What is a clean, pythonic way to have multiple constructors in Python?
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edited Mar 7 '16 at 0:41
Elias Zamaria
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How to populate/instantiate a C# array with a single value?
...cally populated with the default value of the type (e.g. false for bool, 0 for int, etc.).
25 Answers
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How do you print out a stack trace to the console/log in Cocoa?
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edited Oct 28 '11 at 20:58
logancautrell
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Test if object implements interface
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edited Sep 3 '16 at 1:06
Will Brode
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answered Apr 19 '09 at 21:...