Function assert

packages/nexrender-action-lottie/lib/jsx/esprima.jsx:192–196

(condition, message)

    };

    function assert(condition, message) {
        if (!condition) {
            throw new Error('ASSERT: ' + message);
        }
    }

    function isDecimalDigit(ch) {
        return (ch >= 0x30 && ch <= 0x39);