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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | 2x 2x 3138x 3138x 3138x 3138x | /** * Make a map and return a function for checking if a key * is in that map. * IMPORTANT: all calls of this function must be prefixed with * \/\*#\_\_PURE\_\_\*\/ * So that rollup can tree-shake them if necessary. */ /*! #__NO_SIDE_EFFECTS__ */ export function makeMap(str: string): (key: string) => boolean { const map = Object.create(null) for (const key of str.split(',')) map[key] = 1 return val => val in map } |