Commit 6dd1267

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update: 376-2

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+22

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Lines changed: 22 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -10,4 +10,25 @@ function wiggleMaxLength(nums: number[]): number {`
`10`	`10`	`}`
`11`	`11`
`12`	`12`	`return Math.max(up, down);`
`13`		`-};`
	`13`	`+};`
	`14`	`+`
	`15`	`+function wiggleMaxLength2(nums: number[]): number {`
	`16`	`+ if (nums.length < 2) {`
	`17`	`+ return nums.length;`
	`18`	`+ }`
	`19`	`+`
	`20`	`+ let currentDiff = 0;`
	`21`	`+ let previousDiff = 0;`
	`22`	`+ let result = 0;`
	`23`	`+`
	`24`	`+ for (let i = 1; i < nums.length; i++) {`
	`25`	`+ currentDiff = nums[i] - nums[i-1];`
	`26`	`+`
	`27`	`+ if (currentDiff>0 && previousDiff<=0 \|\| currentDiff<0 && previousDiff>=0) {`
	`28`	`+ previousDiff = currentDiff;`
	`29`	`+ result++;`
	`30`	`+ }`
	`31`	`+ }`
	`32`	`+`
	`33`	`+ return result+1;`
	`34`	`+}`

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