yAxis splitLine interval: function(index, val) {} doesn't work

One-line summary [问题简述]

在使用折线图时，想发现纵轴横线过于密集，想通过yAxis.splitLine.interval使线条变少，发现使用函数不能执行

Version & Environment [版本及环境]

• ECharts version [ECharts 版本]: 3.8.4
• Browser version [浏览器类型和版本]: all
• OS Version [操作系统类型和版本]: all

Expected behaviour [期望结果]

纵轴横线过于密集，希望通过配置使横线变少

ECharts option [ECharts配置项]

// 部分配置信息如下，console不打印index
option = {
	yAxis: {
                    axisTick: {
                        show: false,
                    },
                    axisLine: {
                        show: false,
                    },
                    splitLine: {
                        show: true,
                        lineStyle: {
                            color: '#ddd',
                            width: 1,
                            type: 'solid'
                        },
                        interval: function(index, val) {
                            console.log(index);
                            return val;
                        }
                    },
	}

Other comments [其他信息]



[Xalio08]

Why ? It would be really useful for time intervals, which are not the same depending on the month.

[github-actions[bot]]

This issue has been automatically closed because it did not have recent activity. If this remains to be a problem with the latest version of Apache ECharts, please open a new issue and link this to it. Thanks!