Commit a218178

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add: Reverse digit

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+15

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+15

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Original file line number	Diff line number	Diff line change
`@@ -12,3 +12,5 @@ LeetCode JavaScript Solution`
`12`	`12`	`\| Longest Substring Without Repeating Characters \| Medium \| 2017年10月11日 \|`
`13`	`13`	`\| Binary Number with Alternating Bits \| Easy \| 2017年10月13日 \|`
`14`	`14`	`\| Median of Two Sorted Arrays \| Hard \| 2017年10月13日 \|`
	`15`	`+\| Longest Palindromic Substring \| Medium \| 2018年01月19日 \|`
	`16`	`+\| Reverse Integer \| Easy \| 2018年01月19日 \|`

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`@@ -0,0 +1,13 @@`
	`1`	`+/**`
	`2`	`+ * @param {number} x`
	`3`	`+ * @return {number}`
	`4`	`+ */`
	`5`	`+var reverse = function(x) {`
	`6`	`+ var temp = (x > 0 ? x : -x).toString();`
	`7`	`+ ret = parseInt(temp.split('').reverse().join(''));`
	`8`	`+ ret = x > 0 ? ret : -ret`
	`9`	`+ if (ret > Math.pow(2, 31) \|\| ret < -Math.pow(2, 31)) {`
	`10`	`+ ret = 0;`
	`11`	`+ }`
	`12`	`+ return ret;`
	`13`	`+};`

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