React JS - TypeError: this.state.items.map is not a function

react js -typeerror map is not a function, using map function to fetch values from array and print in a loop.

[adabwithwasiq]

thanks man, you perform great work in short time.

[gs]

what if it was an api and you had no control over it

[VrlHtzz]

What to do if API is like
{systems:[
{"Id":"1", "table":"link", "download":"link", "more":[

]}
]}