feat(string): add afterLast

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 } from './string'
+import { capitalize, ensureStartsWith, ensureEndsWith, toForwardSlashes, template, toBackSlashes, replaceFirst, replaceLast, before, beforeLast, after, afterLast } from './string'
 
 it('template', () => {
 	expect(
@@ -176,3 +176,16 @@ it('after', () => {
 	expect(after('han0nah', 0)).toEqual('nah')
 	expect(after('han2nah', 2)).toEqual('nah')
 })
+
+it('afterLast', () => {
+	expect(afterLast('yvette', 'yve')).toEqual('tte')
+	expect(afterLast('yvette', 't')).toEqual('e')
+	expect(afterLast('ééé yvette', 't')).toEqual('e')
+	expect(afterLast('yvette', 'tte')).toEqual('')
+	expect(afterLast('yvette', 'xxxx')).toEqual('yvette')
+	expect(afterLast('yvette', '')).toEqual('yvette')
+	expect(afterLast('yv0et0te', '0')).toEqual('te')
+	expect(afterLast('yv0et0te', 0)).toEqual('te')
+	expect(afterLast('yv2et2te', 2)).toEqual('te')
+	expect(afterLast('----foo', '---')).toEqual('foo')
+})

src/string.ts

@@ -85,6 +85,24 @@ export function after(str: string, separator: string | number) {
 	return str.slice(index + separator.toString().length)
 }
 
+/**
+ * Returns everything after the last occurrence of the given value.
+ *
+ * @category String
+ */
+export function afterLast(str: string, separator: string | number) {
+	if (separator.toString() === '') {
+		return str
+	}
+
+	const index = str.lastIndexOf(separator.toString())
+	if (index === -1) {
+		return str
+	}
+
+	return str.slice(index + separator.toString().length)
+}
+
 /**
  * Replaces the first occurrence of a given value in a string.
  *