A curated list of AWS resources to prepare for the AWS Certifications
A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.
For more about AWS and AWS Certifications you can follow me @leonardofed
Building a Second Brain: The Book - The step-by-step guide to building a Second Brain. Based on 10+ years of research & experiments with organizing our digital lives & improving our productivity.
Building a Second Brain: An Overview | Forte Labs - 2019/02/20
[YouTube] Building a Second Brain: Capturing, Organizing, and Sharing Knowledge Using Digital Notes | Tiago Forte - 2019/03/10
/^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/
A regular expression (regex) is a definition for a search pattern. Regex uses a series of commands to compare a string to a set of rules.
In this case, we are trying to determine if the input is a URL.
In this episode of Who Wants to be a Regular Expression, we will break down each component of this regular expression to gain an understanding of how regular expressions work.
| ==== J A V A ================================== | |
| /** | |
| * Determines the angle of a straight line drawn between point one and two. The number returned, which is a double in degrees, tells us how much we have to rotate a horizontal line clockwise for it to match the line between the two points. | |
| * If you prefer to deal with angles using radians instead of degrees, just change the last line to: "return Math.atan2(yDiff, xDiff);" | |
| */ | |
| public static double GetAngleOfLineBetweenTwoPoints(Point.Double p1, Point.Double p2) | |
| { | |
| double xDiff = p2.x - p1.x; | |
| double yDiff = p2.y - p1.y; | |
| return Math.toDegrees(Math.atan2(yDiff, xDiff)); |
