fix: make parseAsBoolean case insensitive (#1204)

Author: joshuaobrien

packages/nuqs/src/parsers.test.ts

@@ -86,9 +86,12 @@ describe('parsers', () => {
   })
   it('parseAsBoolean', () => {
     expect(parseAsBoolean.parse('')).toBe(false)
-    // In only triggers on 'true', everything else is false
+    // It only triggers on 'true' (case insensitive), everything else is false
     expect(parseAsBoolean.parse('true')).toBe(true)
+    expect(parseAsBoolean.parse('TRUE')).toBe(true)
+    expect(parseAsBoolean.parse('True')).toBe(true)
     expect(parseAsBoolean.parse('false')).toBe(false)
+    expect(parseAsBoolean.parse('FALSE')).toBe(false)
     expect(parseAsBoolean.parse('0')).toBe(false)
     expect(parseAsBoolean.parse('1')).toBe(false)
     expect(parseAsBoolean.parse('yes')).toBe(false)

packages/nuqs/src/parsers.ts

@@ -268,7 +268,7 @@ export const parseAsFloat: SingleParserBuilder<number> = createParser({
 })
 
 export const parseAsBoolean: SingleParserBuilder<boolean> = createParser({
-  parse: v => v === 'true',
+  parse: v => v.toLowerCase() === 'true',
   serialize: String
 })