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Accepted
sinevik
Asked:2020-03-21 01:05:21 +0000 UTC2020-03-21 01:05:21 +0000 UTC

如何通过这条线并删除所有相同的相邻字母？

  • 772

let string = "wwsndaadowffdennn";
let strintwo = "";
for (var i = 0; i < string.length; i++) {
  if (string[i] !== string[i - 1]) {
    strintwo += string[i]
  }
}
console.log(strintwo);

应该是斯诺登。底线是当你删除双打时，由于位移会出现新的双打

javascript

2 个回答

  1. 向后循环并从字符串中删除字符，而不是将字符复制到新字符串

    let string = "wwsndaadowffdennn";
for (var i = string.length - 1; i > 0; i--) {
  console.log("Index: " + i + ", currentChar: " + string[i]);
  if (string[i] == string[i - 1]) {
    string = string.slice(0, i - 1) + string.slice(i + 1);
    console.log("After remove. Index: " + i + ", currentChar: " + string[i]);
  }
}
console.log(string);

    如果循环正向运行，那么我们得到当前字符的移位

    let string = "wwsndaadowffdennn";
for (var i = 0; i < string.length - 1; i++) {
  console.log("Index: " + i + ", currentChar: " + string[i]);
  if (string[i] == string[i + 1]) {
    string = string.slice(0, i) + string.slice(i + 2);
    console.log("After remove. Index: " + i + ", currentChar: " + string[i]);
  }
}
console.log(string);

    • 2
  2. Best Answer

    let string = "wwsndaadowffdennn";
let stringtwo = "";
let re = /(\S)\1/g;
while (stringtwo.length !== string.length) {
  stringtwo = string;
  string = stringtwo.replace(re, '');
}

console.log(stringtwo);

    • 2

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