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Create Return Length of Arguments Passed

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	`1`	`+/*`
	`2`	`+Example 1:`
	`3`	`+`
	`4`	`+Input: argsArr = [5]`
	`5`	`+Output: 1`
	`6`	`+Explanation:`
	`7`	`+argumentsLength(5); // 1`
	`8`	`+`
	`9`	`+One value was passed to the function so it should return 1.`
	`10`	`+*/`
	`11`	`+/**`
	`12`	`+ * @return {number}`
	`13`	`+ */`
	`14`	`+var argumentsLength = function(...args) {`
	`15`	`+ return args.length;`
	`16`	`+};`
	`17`	`+`
	`18`	`+/**`
	`19`	`+ * argumentsLength(1, 2, 3); // 3`
	`20`	`+ */`

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