With 4.1 the JSDoc parser in TypeScript used in both JavaScript and TypeScript files supports the @see parameter. You can use the @see to help people quickly jump to other related code via clicking (cmd/ctrl + clicking) or getting hover info

/**
 * @see hello
 */
const goodbye = "Good";

/**
 * You say hi, I say low
 *
 * @see goodbye
 */
const hello = "Hello, hello";