ts-toolbox

Library of common TypeScript utilities as a package. It's really a grab-bag of different functions and types that I've written over time. I wouldn't use this as a browser library, but instead is intended for use with a bundler of some sorts so that tree-shaking can be performed.

Included functionality

Arrays

• inPlaceConcat - Concatenates arrays "in-place"
• flattenArray - Poly-fill for Array.flat().

Functions

• throttle - Wraps a callback and enables time-based throttling
• debounce - Wraps a callback and enables time-based debouncing

Math

• isInteger - Type-checks and tests if number is an integer
• isFloat - Type-checks and tests if a number is a float (not-integer)
• isPositive - Type-checks and tests if a number is positive
• isNegative - Type-checks and tests if a number is negative
• isOdd - Type-checks and tests if a number is odd
• isEven - Type-checks and tests if a number is even
• isMultipleOf - Type-checks and tests if a number is a multiple of another
• positive - Type-checks and ensures a number is positive (0 inclusive)
• negative - Type-checks and ensures a number is negative (0 exclusive)
• clampFloat - Type-checks and clamps the range of a number
• clampUnit - Type-checks and clamps a number between 0..1
• clampDegree - Type-checks and clamps a number between 0..360
• clampInteger - Type-checks and clamps the range of a number, truncating decimals.
• clampByte - Type-checks and clamps a number between 0..255, truncating decimals.
• clampBits - Type-checks and clamps a number between 0 and the maximum value delivered by a binary number of (2 << bits).
• precisionRound - Rounds a number to a given level of decimal precision.
• precisionFloor - Floors a number to a given level of decimal precision.
• precisionCeil - Ceils a number to a given level of decimal precision.
• precisionModulo - Modulos a number by a nother, with a given level of decimal precision.
• wrapToPositive - Wraps positive and negative numbers to the remainder within a positive range.
• equals - Performs floating point equivelence test within a given tolerance (precision).
• degToRad - Converts degrees to radians
• radToDeg - Converts radians to degrees
• linearInterp - Linearly interpolates between 2 values given an alpha fraction (0..1)
• inverseLinearInterp - Inteversly interpolates a value by a range, returning the alpha fraction (0..1).
• rescale - Takes an incoming range and value, and an output range and calculates a new value at the same delta as the incoming.

Objects

• objectNestedAssign - Recursively assigns objects to a target object.
• objectsAreSameType - Attempts to type-check two incoming values for equivelence.
• objectMatchesLayout - Ensures that an incoming object has the same keys as another.
• TypedMap - A simple string-key Map type that performs type-checking on adding keys.

Random

• randomRange - Generate a random value in a range
• randomPositiveInteger - Generates a random positive integer within integer-bounds.
• randomNegativeInteger - Generates a random negative integer within integer-bounds.
• randomInteger - Generates a random integer within signed-integer bounds.
• randomBoolean - Generates a random true/false.
• randomAlphaNumericCharacter - Generates a single character string within [0-9 A-Z a-z].
• randomCharacter - Generates a random ASCII character.
• randomString - Generates a random string of given length.
• createUID - Generates a random Base-36 string.

Constribution

Feel free to contribute new functionality to this library by issuing a PR.

License

Licensed under MIT, see LICENSE file for more information.

Author

Chris Pikul