Validate Email Address in Javascript
Below is a nice little Javascript RegularExpression to validate email addresses.
/^\w.+@[a-zA-Z_.]+?\.[a-zA-Z.]{2,3}$/
..and to use it..
if …Technical Articles
In-depth guides, insights, and best practices for modern software engineering
Remove hash from window.location in Javascript
E.g. URL:<br>http://example.com/?option=1&task=2&listing_id=36&layout=4&table=5#some_hash_value_here
So how would you get the …
Read Article →The Benefits and Dangers of Artificial Intelligence
Artificial Intelligence (AI) is usually defined as the science of making computers do things that require intelligence when done by humans. (Jack …
Read Article →The Decoded String at Index using Java
The Challenge
An encoded string S is given. To find and write the decoded string to a tape, the encoded string is read one character at a time and …
Timing Issues in Real-time systems
What are Real-time Systems?
If you look up the term “real-time” in a dictionary, it will tell you that it is the actual time during which …
Read Article →Find the Minimum Absolute Difference in BST using Java
The question
Given a binary search tree with non-negative values, find the minimum absolute difference between values of any two nodes.
Example: …
Read Article →Get the Second Highest Salary in MySQL
The problem
Write a SQL query to get the second highest salary from the Employee table.
For example, given the above Employee table, the query …
Read Article →Find Maximum Subarrays using Java
The problem
Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum. …
Finding Number Complements using Java
The problem
Given a positive integer num, output its complement number. The complement strategy is to flip the bits of its binary representation. …
Forensic Analysis on Linux (Unix)
Operating Systems come in a few competing choices, of which the major players are Apple’s MacOS, Microsoft’s Windows and then the various …
Read Article →Self Dividing Numbers using Python
Introduction
A self-dividing number is a number that is divisible by every digit it contains.
For example, 128 is a self-dividing number because 128 % …
RuntimeError: thread.__init__() not called (Python)
Today I got a really dumb error from Python.
RuntimeError: thread.init() not called
But luckily it’s really easy to fix!
Below is the code …
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