Function parseSubParameters

docs/app/js/sanddance-app.js:148124–148131

* Parse a parameter that contains one or more sub-parameter objects.

(def, spec, scope)

/**
 * Parse a parameter that contains one or more sub-parameter objects.
 */ function parseSubParameters(def, spec, scope) {
    const value14 = spec[def.name];
    if (def.array) {
        if (!(0, _vegaUtil.isArray)(value14)) // signals not allowed!
        (0, _vegaUtil.error)("Expected an array of sub-parameters. Instead: " + (0, _vegaUtil.stringValue)(value14));
        return value14.map((v)=>parseSubParameter(def, v, scope));
    } else return parseSubParameter(def, value14, scope);
}
/**
 * Parse a sub-parameter object.
 */ function parseSubParameter(def, value15, scope) {