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Javascript when to use prototypes
I'd like to understand when it is appropriate to use prototype methods in js. Should they always be used? Or are there cases where using them is not preferred and/or incurs a performance penalty?
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How to crop an image using C#?
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Is method DrawImageUnscaledAndClipped more efficient than DrawImage for cropping purpose?
– Ivan Kochurkin
Jan 4 '13 at 22:27
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Remove Primary Key in MySQL
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Note that you have a composite PRIMARY KEY which covers all three columns and id is not guaranteed to be unique.
If it happens to be unique, you can make it to be a PRIMARY KEY and AUTO_INCREMENT again:
ALTER TABLE user_customer_permission MODIFY id INT NOT NULL PRIMARY KEY AUTO_INCREMENT;
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Using Git, show all commits that are in one branch, but not the other(s)
... Note that git log foo..bar will show the commits between bar's latest and foo's latest, but not other commits missing from further back in time. To see everything in bar but not in foo, you should use @jimmyorr's solution.
– Paul A Jungwirth
Jul 10 '14 at ...
How do I truncate a .NET string?
...length is not longer than a given value. I am writing to a database table and want to ensure that the values I write meet the constraint of the column's datatype.
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Powershell v3 Invoke-WebRequest HTTPS error
Using Powershell v3's Invoke-WebRequest and Invoke-RestMethod I have succesfully used the POST method to post a json file to a https website.
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Entity Framework - Add Navigation Property Manually
...tity Framework Model (4.0) from my database. I did not design the database and do not have any control over the schema, but there are a few tables that do not have foreign key constraints defined, but there is an implicit relationship defined.
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How to vertically align into the center of the content of a div with defined width/height?
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I have researched this a little and from what I have found you have four options:
Version 1: Parent div with display as table-cell
If you do not mind using the display:table-cell on your parent div, you can use of the following options:
.area{
height...
Convert a Unicode string to a string in Python (containing extra symbols)
...hat) containing some currency symbols to a "Python string" (whatever ...) and you think that a remove-some-diacritics delete-other-non-ascii characters kludge answers his question???
– John Machin
Jul 30 '09 at 16:25
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All possible array initialization syntaxes
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These are the current declaration and initialization methods for a simple array.
string[] array = new string[2]; // creates array of length 2, default values
string[] array = new string[] { "A", "B" }; // creates populated array of length 2
string[] array = ...