How to Check If Object Is Empty in Javascript?
Javascript does not provide isEmpty() method to check object if it is null/empty. However, it does provide a enumerator so we can test object if it at least has …
Author: ACMer
How to Call Win32 APIs in C++ code – Quick Tutorial
Windows OS is full of DLLs (Dynamic Link Library). Each DLL file has some APIs, which can be used whenever needed (avoid re-inventing the wheel). For example, the system …
SQL Coding Exercise – Rank Scores
Submit your SQL to Leetcode online judge: https://oj.leetcode.com/problems/rank-scores/ Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. …
How to Fix Visual Studio Search in Files Not Displaying List of Files Error?
In Visual Studio, you can use short-cut Ctrl+Shift+F to find string in files (in solution, current project or current document), and sometimes you are unlucky to get this error: …
How To Remove All Blank Lines using Sed or VIM
The regular expressions simplify our lives. For example, if you want to remove all blank lines (empty), instead of writing any scripts or programs, you can simply use the …