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How do I migrate a model out of one django app and into a new one?
...igration specific create_cat --auto --freeze common to access to cat model from common app.
– geoom
Apr 21 '15 at 22:15
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show 4 more commen...
Determine if Android app is being used for the first time
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@Alan you are right, this answer is no longer valid from Android Marshmallow.
– Ioane Sharvadze
May 12 '17 at 17:03
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How to convert numbers between hexadecimal and decimal
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To convert from decimal to hex do...
string hexValue = decValue.ToString("X");
To convert from hex to decimal do either...
int decValue = int.Parse(hexValue, System.Globalization.NumberStyles.HexNumber);
or
int decValue = Conve...
What causes java.lang.IncompatibleClassChangeError?
...any java.lang.IncompatibleClassChangeError s when I try to invoke methods from it. These errors seem to appear at random. What kinds of problems could be causing this error?
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How do I create a self-signed certificate for code signing on Windows?
How do I create a self-signed certificate for code signing using tools from the Windows SDK?
5 Answers
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Cache Invalidation — Is there a General Solution?
...n be modified outside of it's control.
If you have an idempotent function from a, b to c where, if a and b are the same then c is the same but the cost of checking b is high then you either:
accept that you sometime operate with out of date information and do not always check b
do your level best...
Comparison of CI Servers? [closed]
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Geez. That matrix suffers from "DeathByOverload". Basic UX dictates that large grids are useless unless there's filtering. To add insult to injury, there's no download (csv) and the markdown cannot be downloaded directly. Even that resisted copying in...
Should I use window.navigate or document.location in JavaScript?
...more authoritative, though I think it would be better to see documentation from the browser development teams to back up the claim.
– Goyuix
Dec 9 '10 at 17:37
6
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How do you rotate a two dimensional array?
...e isolate a single layer so we can rotate it? Firstly, we inspect a matrix from the outermost layer, inwards, to the innermost layer. A 5×5 matrix has three layers in total and two layers that need rotating:
. . . . .
. x x x .
. x O x .
. x x x .
. . . . .
Let’s look at columns first. The pos...
Best way to include CSS? Why use @import?
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From a page speed standpoint, @import from a CSS file should almost never be used, as it can prevent stylesheets from being downloaded concurrently. For instance, if stylesheet A contains the text:
@import url("stylesheetB.c...