how map work in react

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Mia
27 Aug 2016
1{array.map((item)=>{
2  return (
3    <div key={item.id}>I am one Object in the Array {item}</div>
4  )
5})}
Victoria
31 Nov 2018
1{this.state.data.map((person) => <TableRow key = {shortid.generate()} data = {person} />)}
Moritz
05 Nov 2016
1<style>.leaflet-container {    height: 400px;    width: 800px;}</style>
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