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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | 159x 2582x 2582x 2582x 114714x 13473x | /**
* 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.
*/
export function makeMap(
str: string,
expectsLowerCase?: boolean
): (key: string) => boolean {
const map: Record<string, boolean> = Object.create(null)
const list: Array<string> = str.split(',')
for (let i = 0; i < list.length; i++) {
map[list[i]] = true
}
return expectsLowerCase ? val => !!map[val.toLowerCase()] : val => !!map[val]
}
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