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Create 125__验证回文串__easy.js

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	`1`	`+/**`
	`2`	`+ *`
	`3`	`+ *`
	`4`	`+如果在将所有大写字符转换为小写字符、并移除所有非字母数字字符之后，短语正着读和反着读都一样。则可以认为该短语是一个回文串。`
	`5`	`+`
	`6`	`+字母和数字都属于字母数字字符。`
	`7`	`+`
	`8`	`+给你一个字符串 s，如果它是回文串，返回 true ；否则，返回 false 。`
	`9`	`+`
	`10`	`+`
	`11`	`+`
	`12`	`+示例 1：`
	`13`	`+`
	`14`	`+输入: s = "A man, a plan, a canal: Panama"`
	`15`	`+输出：true`
	`16`	`+解释："amanaplanacanalpanama" 是回文串。`
	`17`	`+示例 2：`
	`18`	`+`
	`19`	`+输入：s = "race a car"`
	`20`	`+输出：false`
	`21`	`+解释："raceacar" 不是回文串。`
	`22`	`+示例 3：`
	`23`	`+`
	`24`	`+输入：s = " "`
	`25`	`+输出：true`
	`26`	`+解释：在移除非字母数字字符之后，s 是一个空字符串 "" 。`
	`27`	`+由于空字符串正着反着读都一样，所以是回文串。`
	`28`	`+`
	`29`	`+`
	`30`	`+/**`
	`31`	`+ *@param {string} s`
	`32`	`+ *@return {boolean}`
	`33`	`+ */`
	`34`	`+varisPalindrome=function(s){`
	`35`	`+// 替换掉所有非字母和数字以及空格`
	`36`	`+s=s.replace(/[^a-zA-Z0-9]/g,"").toLowerCase();`
	`37`	`+returns===[...s].reverse().join("")`
	`38`	`+}`

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