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add: number-of-segments-in-a-string.js

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	`1`	`+/**`
	`2`	`+ * Count the number of segments in a string, where a segment is defined to be a contiguous sequence of non-space characters.`
	`3`	`+ *`
	`4`	`+ * Please note that the string does not contain any non-printable characters.`
	`5`	`+ *`
	`6`	`+ * number-of-segments-in-a-string.js`
	`7`	`+ * @authors Joe Jiang (hijiangtao@gmail.com)`
	`8`	`+ * @date 2017年02月12日 12:50:48`
	`9`	`+ * @param {string} s`
	`10`	`+ * @return {number}`
	`11`	`+ */`
	`12`	`+`
	`13`	`+let countSegments = function(s) {`
	`14`	`+ s = s.trim()`
	`15`	`+ if (s) {`
	`16`	`+ let re = new RegExp(' +');`
	`17`	`+ return s.split(re).length;`
	`18`	`+ }`
	`19`	`+`
	`20`	`+ return 0;`
	`21`	`+};`

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`@@ -3,7 +3,7 @@`
`3`	`3`	`*`
`4`	`4`	`* You may assume that each input would have exactly one solution, and you may not use the same element twice.`
`5`	`5`	`*`
`6`		`- * two0sum.js`
	`6`	`+ * two-sum.js`
`7`	`7`	`*`
`8`	`8`	`* @param {number[]} nums`
`9`	`9`	`* @param {number} target`

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