Function startsWith

src/utils/event.ts:42–42

(input: string)

  (filter: SubscriptionFilter) =>
  (event: Event): boolean => {
    const startsWith = (input: string) => (prefix: string) => input.startsWith(prefix)
    const isMatchingGenericTagCriterion = (key: string, criterion: string) => (tag: Tag): boolean => {
      const [, tagName] = key
      if (tag[0] !== tagName) {