All files / leetCode 0014.ts

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export default function longestCommonPrefix(stringArray: string[]): string {
  const firstString = stringArray[0]
 
  for (let len = 0; stringArray.length > 0; len++) {
    for (let i = 0; i < stringArray.length; i++) {
      const str = stringArray[i]
 
      if (str.length <= len || firstString[len] !== str[len])
        return str.slice(0, len)
    }
  }
 
  return ''
}