84.tools

84.tools is a collection of helpers for your projects

List of helpers

colors

• hexToRgb - Convert hexadecimal color string to rgba string
• rgbToHex - Convert RGB(A) color string to HEX string
• toObject - Convert RGB(A) or HEX color string to RGBA object

dom

• destroyVideo - Properly destroy HTMLVideoElement taking care of removing it from memory
• getIndex - Get index of specific element relative to its parent
• getURLParameters - Retrieve all URL GET parameters

maths

• calculatAspectRatioFit - This method calculate the ratio depending of an specified maxWidth & maxHeight
• clamp - Clamp a value between two bounds
• closestInArray - Return the closest value|index of an array from a specified value
• degrees - Convert radians to degrees
• getPointOnCircle - Method to get a point from a circle and an angle
• getPointsAngle - Return the angle between 2 points
• getPointsDist - Return the distance between two points
• getRandomFloat - Generate a random float between a min and max values
• getRandomInt - Generate a random int between a min and max values
• getSlope - Get the slope value from two points
• prependZeros - This method prepend an amout of 0 to a string|number
• radians - This method prepend an amout of 0 to a string|number - Convert degrees to radians
• range - Return a new value linearly interpolate between a new min and max
• rectHitTest - Check if two rectangle are overlaping

How to use

You can add this project as a dependency in your project.

You can require it or just the methods you need via Browserify.

How to contribute

If you want to add methods to this collection :

• Each file can contain only one function to export.
• The function and the file must have the same name.
• Add your new function to the global category file. For example, if you add a maths helpers, add your file into the maths directory and add require this file into maths.js.
• In case the category doesn't exists, create the directory of the category and the category file at root. And be sure to require this category file into index.js.
• Write a bunch of test for your function/method into the tests directory.
• Commit & Push !