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How to add “on delete cascade” constraints?
...PLACE FUNCTION
replace_foreign_key(f_table VARCHAR, f_column VARCHAR, new_options VARCHAR)
RETURNS VARCHAR
AS $$
DECLARE constraint_name varchar;
DECLARE reftable varchar;
DECLARE refcolumn varchar;
BEGIN
SELECT tc.constraint_name, ccu.table_name AS foreign_table_name, ccu.column_name AS fore...
system(“pause”); - Why is it wrong?
...m Visual Studio closes when the program has finished execution, and so the new user doesn't get to see the output of his new program.
Bodging in System("pause") runs the Windows command-line "pause" program and waits for that to terminate before it continues execution of the program - the console w...
Why is extending native objects a bad practice?
...
You can also (as of es2015) create a new class which extends an existing class, and use that in your own code. so if MyError extends Error it can have a stringify method without colliding with other subclasses. You still have to handle errors not generated by ...
What does “pending” mean for request in Chrome Developer Window?
...Status Text changed to 200 OK.
For example using ASP.NET Web Api
return new HttpResponseMessage(HttpStatusCode.OK ) {
Content = request.Content
};
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Two submit buttons in one form
...
See Leo's answer for the newer HTML5 solution using attribute formaction. Or see kiril's answer for how to have the HTML visible to user be independent of the value sent to browser - solving the internationalization problem.
– T...
How to merge remote changes at GitHub?
...th "git pull --rebase", and push the result back. The rebase will create a new commit D that builds the change between X and B on top of A.
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Get a random item from a JavaScript array [duplicate]
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The issue with adding a new function to Array.prototype is the same issue as adding a global variable - someone/something else may be using the same "name" for something different - which can cause subtle mahem
– Schmoo
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How do I get a value of a using jQuery?
...hink it's important when showing these two functions that we don't confuse new coders by suggesting that they do the same thing, when they do not (although in this example it will appear so). It is important to note that .text() will html encode any characters it finds, while .html() will not encode...
How do you convert a byte array to a hexadecimal string, and vice versa?
...
public static string ByteArrayToString(byte[] ba)
{
StringBuilder hex = new StringBuilder(ba.Length * 2);
foreach (byte b in ba)
hex.AppendFormat("{0:x2}", b);
return hex.ToString();
}
or:
public static string ByteArrayToString(byte[] ba)
{
return BitConverter.ToString(ba).Replace("-...
How can I remove a style added with .css() function?
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51
I got the way to remove a style attribute with pure JavaScript just to let you know the way of ...