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Create 929-Unique-Email-Addresses.js

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	`1`	`+varnumUniqueEmails=function(emails){`
	`2`	`+constvalid=emails.map(email=>{`
	`3`	`+const[local,domain]=email.split('@');`
	`4`	`+returnlocal.split('+').shift().split('.').join('')+'@'+domain;`
	`5`	`+});`
	`6`	`+constset=newSet(valid)`
	`7`	`+`
	`8`	`+returnset.size`
	`9`	`+`
	`10`	`+`
	`11`	`+};`

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