//在前端截取時間前十位
formatter:function () {
const timeArr = arguments[0].split(',')
let index = -1
let str = ''
for (let i = 0; i < timeArr.length; i++) {
index = timeArr[i].indexOf(':')
if (index !== -1) {
//截取前十位,從0開始截取十個,str.substr(start, [length])
str += timeArr[i].substr(0, 10) + '-'
}
}
return str.slice(0, str.length - 1) //去掉字符串最後一位
}