Big O notation is a mathematical notation that describes the limiting behavior of a function when the argument tends towards a particular value or infinity. // by Wikipedia Big Os O(1) –> Constant- no loops O(n) –>Linear- for loops, while loops through n items O(log N) –> Logarithmic- usually searching algorithms have log n if they are sorted (Binary Search) O(n log(n)) …
It seems ruby needs Unix env in some points. So in windows, we should use wsl to run ruby. Enable Windows subsystem for Linux and install Linux I guess this site has explained very clear. Don’t forget to sudo apt update and upgrade. Install Ruby/ Ruby On Rails on Windows Open cmd and type “bash” …
Using CSS, which specifies the appearance of documents written in HTML or XML, you can freely specify the colors of text and pages. In order to specify a color, you need a color name, but looking up the names of 147 different colors can be tedious. In such a case, you can use the web …
On March 2, 2021, Microsoft released Power Automate Desktop for Windows 10, an official Robotic Process Automation (RPA) tool. This tool will come standard with Windows 10, but since it was already available for download, We can use it now. https://blogs.windows.com/windowsexperience/2021/03/02/download-power-automate-desktop-for-windows-10-to-automate-tasks-and-processes-at-no-additional-cost/ After installing it, will pop-up a dialog box with 3 types of browser extensions …
“Cell Tower Distribution” is a web application that visualizes the location of base stations around the world as grains of light. I actually tried “Cell Tower Distribution” to check the status of signal coverage in various regions. https://alpercinar.com/open-cell-id/ This can let us see a clear visual map to know which area has a better signal. …
As the title, I was going to use VMware for my very first time, and I got this error message. I know I need to config … again … Windows destiny… So I clicked the URL the error prompt box provided and follow the resolution. To resolve the issue do one of the following: Upgrade …
Solution for the VMware Workstation error due to not disabling Device/Credential Guard Read More »
“WAIT” is a web service that allows you to search for a single image to find out what kind of anime it is and how many episodes it contains. And I tried it out. https://trace.moe/ So I picked one jojo pic from google image. Copied the link address and pasted it into the web (trace.moe). …
WAIT: What Anime Is This? – Anime Scene Search Engine Read More »
After a couple months of learning Javascript, I faced this situation: I can’t read some code or don’t understand it. There are so many shorthands, and it let newbies harder to understand/read it. Object Property Shorthand In ES6, if the object key and the value variable has the same name, we can use shorthand like …
ES6 –Object Property Shorthand and Destructuring Read More »
People in Taiwan use TW-Keyboard which layout is the same as US-Keyboard. After came to Japan, I was forced to use JP-Keyboard due to there is only JP-Keyboard-laptops for employees. In the beginning, I felt so troublesome. But since my job needs to type Japanese quite a lot, I realized a JP-Keyboard could help a …
filter() method is a bit hard to understand for me at first. So I will share my thought to you. The filter() method creates a new array with all elements that pass the test implemented by the provided function. by MDN web docs So it would create a new array by running through all the old array with a …
