1 files changed, 16 insertions, 0 deletions
diff --git a/src/util.ts b/src/util.ts
index a686b70..180c7c2 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -2,8 +2,12 @@
  * General utility functions
  */
 
+// ========== For device detection ==========
+
 // For detecting screen size
+
 export type Breakpoint = 'sm' | 'md' | 'lg';
+
 export function getBreakpoint(): Breakpoint {
 	const w = window.innerWidth;
 	if (w < 768){
@@ -14,6 +18,7 @@ export function getBreakpoint(): Breakpoint {
 		return 'lg';
 	}
 }
+
 // For getting scroll-bar width // From stackoverflow.com/questions/13382516/getting-scroll-bar-width-using-javascript
 export function getScrollBarWidth(){
 	// Create hidden outer div
@@ -31,19 +36,24 @@ export function getScrollBarWidth(){
 	//
 	return scrollBarWidth;
 }
+
 // Detects a touch device
 export function onTouchDevice(){
 	return window.matchMedia('(pointer: coarse)').matches;
 }
 
+// ========== Other ==========
+
 // Returns [0 ... len]
 export function range(len: number): number[] {
 	return [...Array(len).keys()];
 }
+
 // Returns sum of array values
 export function arraySum(array: number[]): number {
 	return array.reduce((x,y) => x+y);
 }
+
 // Returns an array of increasing evenly-spaced numbers from 'start' to 'end', with size 'size'
 export function linspace(start: number, end: number, size: number): number[] {
 	const step = (end - start) / (size - 1);
@@ -53,6 +63,7 @@ export function linspace(start: number, end: number, size: number): number[] {
 	}
 	return ar;
 }
+
 // Returns array copy with vals clipped to within [min,max], redistributing to compensate
 // Returns null on failure
 export function limitVals(arr: number[], min: number, max: number): number[] | null {
@@ -78,6 +89,7 @@ export function limitVals(arr: number[], min: number, max: number): number[] | n
 		if (Math.abs(owedChg) < Number.EPSILON){
 			return vals;
 		}
+
 		// Compensate for changes made
 		const indicesToUpdate = (owedChg > 0) ?
 			range(vals.length).filter(idx => vals[idx] < max) :
@@ -91,6 +103,7 @@ export function limitVals(arr: number[], min: number, max: number): number[] | n
 		owedChg = 0;
 	}
 }
+
 // Usable to iterate through possible int arrays with ascending values in the range 0 to N, where N < maxLen
 	// For example, with maxLen 3, passing [0] will update it to [0,1], then [0,2], then [0,1,2]
 // Returns false when there is no next array
@@ -114,6 +127,7 @@ export function updateAscSeq(seq: number[], maxLen: number): boolean {
 		}
 	}
 }
+
 // Given a non-empty array of non-negative weights, returns an array index chosen with weighted pseudorandomness
 // Returns null if array contains all zeros
 export function randWeightedChoice(weights: number[]): number | null {
@@ -131,6 +145,7 @@ export function randWeightedChoice(weights: number[]): number | null {
 	}
 	return null;
 }
+
 // Returns a string with words first-letter capitalised
 export function capitalizeWords(str: string){
 	str = str.replace(/\b\w/g, x => x.toUpperCase()); // '\b' matches word boundary, '\w' is like [a-zA-Z0-9_]
@@ -138,6 +153,7 @@ export function capitalizeWords(str: string){
 	str = str.replace(/ And\b/, ' and'); // Avoid cases like "frogs and toads" -> "Frogs And Toads"
 	return str;
 }
+
 // Used to async-await for until after a timeout
 export async function timeout(ms: number){
 	return new Promise(resolve => setTimeout(resolve, ms))