Fix toCamel issue

Author: owjs3901

src/utils/__tests__/to-camel.test.ts

@@ -7,6 +7,7 @@ describe('toCamel', () => {
     expect(toCamel('toCamel')).toBe('toCamel')
     expect(toCamel('TO_CAMEL')).toBe('toCamel')
     expect(toCamel('TO-CAMEL')).toBe('toCamel')
+    expect(toCamel('ToCamel')).toBe('toCamel')
     expect(toCamel('TO CAMEL')).toBe('toCamel')
     expect(toCamel('to_Camel')).toBe('toCamel')
     expect(toCamel('to camel')).toBe('toCamel')

src/utils/to-camel.ts

@@ -10,6 +10,7 @@ export function toCamel(str: string): string {
   }
   return str
     .split(/([A-Z][a-z]+)/)
+    .filter(Boolean)
     .map((word, index) => {
       if (index === 0) return word.toLowerCase()
       return word.charAt(0).toUpperCase() + word.slice(1).toLowerCase()