How to split array?

xpath => [
#"response/data/latency","latency",

"/response/data/run/firstView/videoFrames/frame[*]/time/text()","Time_FV",

]

Output= "Time_FV": [ 0, 800, 1600, 1800, 7100 ],

Would like split array before feeding this to the ElasticSearch output with each event. Any solution welcome!