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How to implement an abstract class in ruby?
I know there is no concept of abstract class in ruby. But if at all it needs to be implemented, how to go about it? I tried something like...
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Converting many 'if else' statements to a cleaner approach [duplicate]
My code here detects if the mimeType is equals to some MIME type, if it is, it will do a certain conversion
7 Answers
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Can multiple different HTML elements have the same ID if they're different elements?
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No.
Element IDs should be unique within the entire document.
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How do I deep copy a DateTime object?
... create two separate datetimes, one which is parsed from a string and one with three years added to it. Currently I've hacked it up like this:
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Should MySQL have its timezone set to UTC?
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It seems that it does not matter what timezone is on the server as long as you have the time set right for the current timezone, know the timezone of the datetime columns that you store, and are aware of the issues with dayli...
How can I perform a reverse string search in Excel without using VBA?
...oes work (based on Brad's original post):
=RIGHT(A1,LEN(A1)-FIND("|",SUBSTITUTE(A1," ","|",
LEN(A1)-LEN(SUBSTITUTE(A1," ","")))))
If your original strings could contain a pipe "|" character, then replace both in the above with some other character that won't appear in your source. (I suspect...
How is an HTTP POST request made in node.js?
How can I make an outbound HTTP POST request, with data, in node.js?
21 Answers
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How to pop an alert message box using PHP?
...o the client's browser. PHP is a server-side language. This is what allows it do things like INSERT something into a database on the server.
But an alert is rendered by the browser of the client. You would have to work through javascript to get an alert.
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Android app in Eclipse: Edit text not showing on Graphical layout
...text option on to the graphical layout, a message at the bottom comes up. It reads
Exception raised during rendering: java.lang.System.arraycopy([CI[CII)V
Exception details are logged in Window > Show View > Error Log
Even when I go to Window > Show View there is no error log option. T...
Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?
... FOR loop is static in nature; you cannot modify the loop variable between iterations, unlike the for(initialization;condition;increment) loop structure in other languages. This means that the following code always prints 1, 2, 3, 4, 5 regardless of the value of B.
A = 1:5;
for i = A
A = B;
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