Adapter
call
Given a key and a set of arguments, call them when given a context. Primarily useful in composition.
@@ -835,18 +837,6 @@ If you want to curry a function that accepts a variable number of arguments (a vconst functionName = fn => (console.debug(fn.name), fn);
// functionName(Math.max) -> max (logged in debug channel of console)
pipe
Performs left-to-right function composition.
-Use Array.reduce() with the spread operator (...) to perform left-to-right function composition.
-The first (leftmost) function can accept one or more arguments; the remaining functions must be unary.
const pipeFunctions = (...fns) => fns.reduce((f, g) => (...args) => g(f(...args)));
-/*
-const add5 = x => x + 5
-const multiply = (x, y) => x * y
-const multiplyAndAdd5 = pipeFunctions(multiply, add5)
-multiplyAndAdd5(5, 2) -> 15
-*/
-runPromisesInSeries
Runs an array of promises in series.
Use Array.reduce() to create a promise chain, where each promise returns the next promise when resolved.
randomHexColorCode
Generates a random hexadecimal color code.
-Use Math.random to generate a random 24-bit(6x4bits) hexadecimal number. Use bit shifting and then convert it to an hexadecimal String using toString(16).
const randomHexColor = () => {
- let n = (Math.random()*0xfffff|0).toString(16);
- return '#' + (n.length !== 6
- ? (Math.random()*0xf|0).toString(16) + n : n);
-}
-// randomHexColorCode() -> "#e34155"
-// randomHexColorCode() -> "#fd73a6"
-// randomHexColorCode() -> "#4144c6"
-RGBToHex
Converts the values of RGB components to a color code.
Convert given RGB parameters to hexadecimal string using bitwise left-shift operator (<<) and toString(16), then padStart(6,'0') to get a 6-digit hexadecimal value.
Number() to check if the coercion holds.
const validateNumber = n => !isNaN(parseFloat(n)) && isFinite(n) && Number(n) == n;
// validateNumber('10') -> true
Uncategorized
+pipeFunctions
Performs left-to-right function composition.
+Use Array.reduce() with the spread operator (...) to perform left-to-right function composition.
+The first (leftmost) function can accept one or more arguments; the remaining functions must be unary.
const pipeFunctions = (...fns) => fns.reduce((f, g) => (...args) => g(f(...args)));
+/*
+const add5 = x => x + 5
+const multiply = (x, y) => x * y
+const multiplyAndAdd5 = pipeFunctions(multiply, add5)
+multiplyAndAdd5(5, 2) -> 15
+*/
+randomHexColor
Generates a random hexadecimal color code.
+Use Math.random to generate a random 24-bit(6x4bits) hexadecimal number. Use bit shifting and then convert it to an hexadecimal String using toString(16).
const randomHexColor = () => {
+ let n = (Math.random()*0xfffff|0).toString(16);
+ return '#' + (n.length !== 6
+ ? (Math.random()*0xf|0).toString(16) + n : n);
+}
+// randomHexColorCode() -> "#e34155"
+// randomHexColorCode() -> "#fd73a6"
+// randomHexColorCode() -> "#4144c6"
+