Commit fe1bc4f

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New: Random generate number

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Original file line number	Diff line number	Diff line change
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	`1`	`+function getRandomInt(max) {`
	`2`	`+ return Math.floor(Math.random() * max);`
	`3`	`+}`
	`4`	`+`
	`5`	`+console.log(getRandomInt(3));`
	`6`	`+// Expected output: 0, 1 or 2`
	`7`	`+`
	`8`	`+console.log(getRandomInt(1));`
	`9`	`+// Expected output: 0`
	`10`	`+`
	`11`	`+console.log(Math.random());`
	`12`	`+// Expected output: a number from 0 to <1`

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