lib/rules/no-unsupported-features/es-syntax.js
function isNotSupportingVersion(aCase) {
        return (
            !aCase.supported ||
            options.version.intersects(getSemverRange(`<${aCase.supported}`))
        )
    }
function isNotSupportingVersion(aCase) {
        return (
            !aCase.supported ||
            options.version.intersects(getSemverRange(`<${aCase.supported}`))
        )
    }
Check whether a given case object is full-supported on the configured node version.
@param {{supported:string}} aCase The case object to check.
@returns {boolean} `true` if it's supporting.