Commit 72b2998

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Object returns undefined when no associated key, not null

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Original file line number	Diff line number	Diff line change
`@@ -88,7 +88,7 @@`
`88`	`88`	`var unique = [];`
`89`	`89`
`90`	`90`	`for(var i = 0; i < array.length; i++) {`
`91`		`- // If key returns null (unique), it is evaluated as false.`
	`91`	`+ // If key returns undefined (unique), it is evaluated as false.`
`92`	`92`	`if(!hashmap.hasOwnProperty([array[i]])) {`
`93`	`93`	`hashmap[array[i]] = 1;`
`94`	`94`	`unique.push(array[i]);`

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