Function isTuple

docs/app/js/sanddance-app.js:107206–107208

* Checks if an input value is a registered tuple. * @param {*} t - The value to check. * @return {boolean} True if the input is a tuple, false otherwise.

(t)

 * @param {*} t - The value to check.
 * @return {boolean} True if the input is a tuple, false otherwise.
 */ function isTuple(t) {
    return !!(t && tupleid(t));
}
/**
 * Returns the id of a tuple.
 * @param {object} t - The input tuple.