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- 'use strict'
-
- function normalizeIdentifier(value) {
- return (
- value // Collapse Markdown whitespace.
- .replace(/[\t\n\r ]+/g, ' ') // Trim.
- .replace(/^ | $/g, '') // Some characters are considered “uppercase”, but if their lowercase
- // counterpart is uppercased will result in a different uppercase
- // character.
- // Hence, to get that form, we perform both lower- and uppercase.
- // Upper case makes sure keys will not interact with default prototypal
- // methods: no object method is uppercase.
- .toLowerCase()
- .toUpperCase()
- )
- }
-
- module.exports = normalizeIdentifier
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