KebabCase

问题
解答
拆分
执行步骤

问题

FooBarBaz -> foo-bar-baz

解答

type KebabCase<S, T extends string = ""> = 
S extends `${infer First}${infer Rest}` 
  ? First extends Uncapitalize<First>
    ? KebabCase<Rest, `${T}${First}`>
    : T extends ""
      ? KebabCase<Rest, `${Uncapitalize<First>}`>
      : KebabCase<Rest, `${T}-${Uncapitalize<First>}`>
  : T;

拆分

利用大写转换之后变成小写和原来的对比
如果和原来一样就直接拼接
如果和原来不一样就判断是否是首字
根据判断结果添加 -

执行步骤

foo-bar

S	T	First	Rest	`First=U<First>`	T=""	result
foo-bar		f	oo-bar	true	never	`KebabCase<oo-bar, f>`
oo-bar	f	o	o-bar	true	never	`KebabCase<o-bar, fo>`
o-bar	fo	o	-bar	true	never	`KebabCase<-bar, foo>`
-bar	foo	-	bar	true	never	`KebabCase<bar, foo->`
bar	foo-	b	ar	true	never	`KebabCase<ar, foo-b>`
ar	foo-b	a	r	true	never	`KebabCase<r, foo-ba>`
r	foo-ba	never	never	never	never	r

FooBarBaz

S	T	First	Rest	`First=U<First>`	T=""	result
FooBar		F	ooBar	false	true	`KebabCase<ooBar, f>`
ooBar	f	o	oBar	true	never	`KebabCase<oBar, fo>`
oBar	fo	o	Bar	true	never	`KebabCase<Bar, foo>`
Bar	foo	B	ar	false	never	`KebabCase<ar, foo-b>`
ar	foo-b	a	r	true	never	`KebabCase<r, foo-ba>`
r	foo-ba	r		true	never	`KebabCase<never, foo-bar>`
never	foo-bar	never	never	never	never	foo-bar

KebabCase

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问题

解答

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执行步骤