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Create findOccuranceUsingMaps.js

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	`1`	`+/*Given an array of strings, names. Find the number of occurrences of every string that exists in the array.`
	`2`	`+`
	`3`	`+`
	`4`	`+Use Map (named occurrence) data structure to find the number of occurrences.`
	`5`	`+`
	`6`	`+`
	`7`	`+*/`
	`8`	`+function findOccurrence(names) {`
	`9`	`+ var occurence = new Map();`
	`10`	`+ var nameArr = names`
	`11`	`+`
	`12`	`+ for (const word of nameArr){`
	`13`	`+ if(occurence.has(word)){`
	`14`	`+ occurence.set(word, occurence.get(word)+1)`
	`15`	`+ }else{`
	`16`	`+ occurence.set(word,1)`
	`17`	`+ }`
	`18`	`+ }`
	`19`	`+`
	`20`	`+ return occurence;`
	`21`	`+}`
	`22`	`+`
	`23`	`+`
	`24`	`+module.exports = findOccurrence;`
	`25`	`+const arr = ['jim',"selina", "bruce", "jim"]`
	`26`	`+console.log(findOccurrence(arr))`

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