Commit3e94cf7

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1 parentbde1f4e commit3e94cf7Copy full SHA for 3e94cf7

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+63

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Lines changed: 27 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,27 @@`
	`1`	`+/**`
	`2`	`+ *@param {string} version1`
	`3`	`+ *@param {string} version2`
	`4`	`+ *@return {number}`
	`5`	`+ */`
	`6`	`+varcompareVersion=function(version1,version2){`
	`7`	`+varversionOne=version1.split('.');`
	`8`	`+varversionTwo=version2.split('.');`
	`9`	`+if(versionOne.length<=versionTwo.length){`
	`10`	`+for(vari=versionOne.length;i<versionTwo.length;i++){`
	`11`	`+versionOne[i]='0';`
	`12`	`+}`
	`13`	`+}`
	`14`	`+if(versionTwo.length<versionOne.length){`
	`15`	`+for(vari=versionTwo.length;i<versionOne.length;i++){`
	`16`	`+versionTwo[i]='0';`
	`17`	`+}`
	`18`	`+}`
	`19`	`+`
	`20`	`+for(vari=0;i<versionOne.length;i++){`
	`21`	`+varversionOneInt=parseInt(versionOne[i]);`
	`22`	`+varversionTwoInt=parseInt(versionTwo[i])`
	`23`	`+if(versionOneInt<versionTwoInt)return-1;`
	`24`	`+if(versionOneInt>versionTwoInt)return1;`
	`25`	`+}`
	`26`	`+return0;`
	`27`	`+};`

Lines changed: 36 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,36 @@`
	`1`	`+/**`
	`2`	`+ *@param {string} str`
	`3`	`+ *@return {number}`
	`4`	`+ */`
	`5`	`+varmyAtoi=function(str){`
	`6`	`+if(str.length===0)return0;`
	`7`	`+varindex=0;`
	`8`	`+varsign=1;`
	`9`	`+varnum=0;`
	`10`	`+// delete spaces before and after, trim() is a good method.`
	`11`	`+str=str.trim();`
	`12`	`+`
	`13`	`+// not clear from the question, the string may not begin with a sign.`
	`14`	`+if(str[index]==='-'){`
	`15`	`+sign=-1;`
	`16`	`+index++;`
	`17`	`+}elseif(str[index]==='+'){`
	`18`	`+index++;`
	`19`	`+}`
	`20`	`+`
	`21`	`+for(vari=index;i<str.length;i++){`
	`22`	`+if(str[i]<'0'\|\|str[i]>'9')break;`
	`23`	`+num=num*10+parseInt(str[i]);`
	`24`	`+}`
	`25`	`+`
	`26`	`+// ugly here, don't how to represent the max number in JavaScript.`
	`27`	`+varMAXVAULE=Math.pow(2,31)-1;`
	`28`	`+if(sign===1&&num>=MAXVAULE){`
	`29`	`+returnMAXVAULE;`
	`30`	`+}`
	`31`	`+if(sign===-1&&-num<=-(MAXVAULE+1)){`
	`32`	`+return-(MAXVAULE+1);`
	`33`	`+}`
	`34`	`+`
	`35`	`+returnnum*sign;`
	`36`	`+};`

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