A Simple du Implementation using Windows Batch Programming
The utility du estimates file space usage, which is a commonly-used command on Linux OS. Similar to touch, the following implements the basics of the du command by using …
JQuery – How to Animate Scrolling to the Top and Scrolling to a Div ?
JQuery has a handy function prototype animate which takes first final CSS properties as the first parameter, and the speed as the second parameter e.g. “fast“, “slow” or the …
Simple Steps Make Website Mobile Friendly (Responsive Design)?
I have finally make my site: steakovercooked.com mobile user friendly and thus all web pages at all my 6 domains so far are qualified for user-mobile friendly. The mobile …
C++ Range Sum Query on Immutable Array via Prefix Sum
Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. Example: Given nums = sumRange(0, 2): 1 sumRange(2, 5): …
Case Study: use PHPQuery to Crawl 3000 images from Tumblr
There are some nice images on Tumblr. We can use Tumblr APIs to search and download images however this usually requires the registration and API keys. Another way is …
Shell Coding Exercise – Word Frequency
This puzzle reveals that you don’t need to write a few lines of shell scripts, you would just need one line (using pipes) to achieve complex tasks. See below: …