Commit 77c1098

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Merge pull request youngyangyang04#856 from Jerry-306/patch-42

简化 1002 查找相同字符 JavaScript版本代码

2 parents 7ade584 + d92d720 commit 77c1098Copy full SHA for 77c1098

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Lines changed: 6 additions & 10 deletions

Original file line number	Diff line number	Diff line change
`@@ -224,32 +224,28 @@ javaScript`
`224`	`224`	`var commonChars = function (words) {`
`225`	`225`	`let res = []`
`226`	`226`	`let size = 26`
`227`		`- let firstHash = new Array(size)`
`228`		`- for (let i = 0; i < size; i++) { // 初始化 hash 数组`
`229`		`- firstHash[i] = 0`
`230`		`- }`
	`227`	`+ let firstHash = new Array(size).fill(0) // 初始化 hash 数组`
`231`	`228`
`232`	`229`	`let a = "a".charCodeAt()`
`233`	`230`	`let firstWord = words[0]`
`234`	`231`	`for (let i = 0; i < firstWord.length; i++) { // 第 0 个单词的统计`
`235`	`232`	`let idx = firstWord[i].charCodeAt()`
`236`	`233`	`firstHash[idx - a] += 1`
`237`	`234`	`}`
`238`		`-`
	`235`	`+`
	`236`	`+ let otherHash = new Array(size).fill(0) // 初始化 hash 数组`
`239`	`237`	`for (let i = 1; i < words.length; i++) { // 1-n 个单词统计`
`240`		`- let otherHash = new Array(size)`
`241`		`- for (let i = 0; i < size; i++) { // 初始化 hash 数组`
`242`		`- otherHash[i] = 0`
`243`		`- }`
`244`		`-`
`245`	`238`	`for (let j = 0; j < words[i].length; j++) {`
`246`	`239`	`let idx = words[i][j].charCodeAt()`
`247`	`240`	`otherHash[idx - a] += 1`
`248`	`241`	`}`
	`242`	`+`
`249`	`243`	`for (let i = 0; i < size; i++) {`
`250`	`244`	`firstHash[i] = Math.min(firstHash[i], otherHash[i])`
`251`	`245`	`}`
	`246`	`+ otherHash.fill(0)`
`252`	`247`	`}`
	`248`	`+`
`253`	`249`	`for (let i = 0; i < size; i++) {`
`254`	`250`	`while (firstHash[i] > 0) {`
`255`	`251`	`res.push(String.fromCharCode(i + a))`

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