如何在JS

Question

我正在尝试获取精确搜索字符串的索引，我构建了一个函数，该函数返回仅需要完全匹配的索引的匹配字符串

这是我的功能

getIndicesOf = (searchStr, str) => {
              var searchStrLen = searchStr.length;
              if (searchStrLen === 0) {
                return [];
              }
              var startIndex = 0,
                index,
                indices = [];
              while ((index = str.indexOf(searchStr, startIndex)) > -1) {
                indices.push(index);
                startIndex = index + searchStrLen;
              }
               console.log("detercting " , indices );
            return indices;
};
console.log(getIndicesOf("go" , "go, I am going ")); //  [0, 9]

我在这里查找go的索引，如何仅获取完全匹配字符串的索引？

Answer 1

第一次出现的go也包含逗号。因此，这不是完全匹配。

如果您仍然想获取单词数组中 go 和 go 的所有索引，您可以使用以下脚本。

var x = "go, I am going go";
arr = x.split(" ");
arr.map((e, i) => (e === "go" || e === "go,") ? i : '').filter(String)

如果需要在字符串中查找索引，可以使用以下方法

var x = "go, I am going go";
arr = x.split(" "); var index = 0;
arr.map((e, i) => {
     var occur = (e === "go" || e === "go,") ? index : '';
     index+=e.length+1;
     return occur}).filter(String)

Answer 2

用这段代码替换while循环，

<div class="resume-item d-flex flex-column flex-md-row mb-5">
  <div class="resume-content mr-auto">
    <h3 class="mb-0">A.N. Other</h3>
    <div class="subheading mb-3">Intelligence Analysis Masters Student</div>
    <p>Interview Q&A Goes Here</p>
  </div>
  <div class="resume-date text-md-right">
    <span class="text-primary">June 2017</span>
  </div>
</div>
<div class="resume-item d-flex flex-column flex-md-row mb-5">
  <div class="resume-content mr-auto">
    <h3 class="mb-0">A.N. Other</h3>
    <div class="subheading mb-3">Intelligence Analysis Masters Student</div>
    <p>Interview Q&A Goes Here</p>
  </div>
  <div class="resume-date text-md-right">
    <span class="text-primary">June 2017</span>
  </div>
</div>

<!-- put this div where you want the count to be -->
<div id="total-count"></div>