Created
February 9, 2017 01:11
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| export default function normalizeToString(input) { | |
| // string or String object | |
| if (typeof input === 'string' || input instanceof String) return input.toString(); | |
| // boolean value | |
| if (typeof input === 'boolean') return input.toString(); | |
| // numeric value | |
| if (typeof input === 'number' || input instanceof Number) { | |
| // not a finite value - invalid input - return empty | |
| if (!Number.isFinite(input)) return ''; | |
| // safe integer, return as-is | |
| if (Number.isSafeInteger(input)) return input.toString(10); | |
| // not a safe integer, return with 5 decimal places | |
| return input.toFixed(5); // fix to 4 decimal places | |
| } | |
| // if there's a JSON method, use the result of that | |
| if (typeof input.toJSON === 'function') { | |
| const ret = input.toJSON(); | |
| if (typeof ret === 'string') return ret; | |
| } | |
| // unsupported value - empty string | |
| return ''; | |
| } |
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| import normalizeToString from './normalize-to-string'; | |
| export default function normalizeKeyValue(input) { | |
| let result = normalizeToString(input); | |
| // no input | |
| if (!result) return ''; | |
| // input too long - can cause regex issues down below | |
| if (result.length > 1024) return ''; | |
| // normalize unicode - ensure input will always be in the same structure | |
| result = result.normalize('NFKC'); | |
| // replace all whitespace characters with space | |
| // eslint-disable-next-line no-irregular-whitespace | |
| result = result.replace(/[ \f\n\r\t\v\u00A0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u2028\u2029\u2028\u2029\u202f\u205f\u3000]/g, ' '); | |
| // trim - handle copy-paste issues | |
| result = result.trim(); | |
| return result; | |
| } |
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