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What is “callback hell” and how and why does RX solve it?
Can someone give a clear definition together with a simple example that explains what is a "callback hell" for someone who does not know JavaScript and node.js ?
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Hidden features of Android development?
...dden, hidden features - but here's some of the less well known and non-intuitive features available for Android that will definitely make your life easier and your apps better.
All the source code for the platform and all the non-Google native apps is available for you to browse, download, borrow,...
What is the difference between a database and a data warehouse?
...RDMS). This is done to reduce redundant data and to save storage space.
Entity – Relational modeling techniques are used for RDMS database design.
Optimized for write operation.
Performance is low for analysis queries.
Data Warehouse
Used for Online Analytical Processing (OLAP). This reads th...
How to get Linux console window width in Python
... determine the width of the console? I mean the number of characters that fits in one line without wrapping, not the pixel width of the window.
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How to detect page zoom level in all modern browsers?
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Now it's an even bigger mess than it was when this question was first asked. From reading all the responses and blog posts I could find, here's a summary. I also set up this page to test all these methods of measuring the zoom le...
What is a regular expression which will match a valid domain name without a subdomain?
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Well, it's pretty straightforward a little sneakier than it looks (see comments), given your specific requirements:
/^[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9]\.[a-zA-Z]{2,}$/
But note this will reject a lot of valid domains.
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Difference between float and decimal data type
What difference does it make when I use float and decimal data types in MySQL?.
12 Answers
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Find Oracle JDBC driver in Maven repository
...c driver to my project as dependency (runtime scope) - ojdbc14.
In MVNrepository site the dependency to put in the POM is:
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Looping through the content of a file in Bash
How do I iterate through each line of a text file with Bash ?
13 Answers
13
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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...