Function is2DArray

_benchmarks/sample_echarts.js:4891–4893

(value)

        }
    }
    function is2DArray(value) {
        return isArrayLike(value[0]);
    }
    function copyValue(target, source, key) {
        if (isArrayLike(source[key])) {
            if (!isArrayLike(target[key])) {