@contextjs/system/services/nameof.js

ContextJS - System

import { InvalidExpressionException } from "../exceptions/invalid-expression.exception.js";
export function nameof(expr) {
    if (typeof expr === "string")
        return expr;
    const match = /\.\s*([_$a-zA-Z][_$a-zA-Z0-9]*)\s*$/.exec(expr.toString());
    if (!match)
        throw new InvalidExpressionException(`Invalid expression passed to nameof(): ${expr.toString()}`);
    return match[1];
}