feat(string): add squish

src/string.test.ts

@@ -1,5 +1,5 @@
 import { expect, it } from 'vitest'
-import { capitalize, ensureStartsWith, ensureEndsWith, toForwardSlashes, template, toBackSlashes, replaceFirst, replaceLast, before, beforeLast, after, afterLast, between, betweenShrink } from './string'
+import { capitalize, ensureStartsWith, ensureEndsWith, toForwardSlashes, template, toBackSlashes, replaceFirst, replaceLast, before, beforeLast, after, afterLast, between, betweenShrink, squish } from './string'
 
 it('template', () => {
 	expect(
@@ -217,3 +217,9 @@ it('betweenShrink', () => {
 	expect(betweenShrink('foofoobar', 'foo', 'bar')).toEqual('foo')
 	expect(betweenShrink('foobarbar', 'foo', 'bar')).toEqual('')
 })
+
+it('squish', () => {
+	expect(squish('    hello    world    ')).toEqual('hello world')
+	expect(squish(' \t hello \t   world  \t  ')).toEqual('hello world')
+	expect(squish(' \t hello\n \t   world  \t\n  ')).toEqual('hello world')
+})

src/string.ts

@@ -169,6 +169,13 @@ export function ensureEndsWith(suffix: string, str: string) {
 	return str
 }
 
+/**
+ * Removes duplicate spaces from a string.
+ */
+export function squish(str: string) {
+	return str.replace(/\s+/g, ' ').trim()
+}
+
 /**
  * Dead simple template engine, just like Python's `.format()`
  * Support passing variables as either in index based or object/name based approach