javascript - 在javascript中获取两个不同字符之间的字符串

Question

假设我们有一个介于 2 个字符之间的字符串:

"<p>This is some text</p> and then this is some more"

我们如何才能只得到“这是一些文本”

Answer 1

var str="<p>This is some text</p> and then this is some more";
var p=str.substring(str.lastIndexOf("<p>")+3,str.lastIndexOf("</p>"));
console.log(p);

如果该标签多次出现，请使用此:

// here `/<p>(.*?)<\/p>/g` will give string like <p>This is some text</p> with p tags then replace p with '' using `/<\/?p>/g,''`.
var str="<p>This is some text</p> and then this is some more.<p>hello</p>";
var p = str.match(/<p>(.*?)<\/p>/g).map(function(val){
   return val.replace(/<\/?p>/g,'');
});

console.log(p);

根据 RobG 建议，如果您可以使用字符串构造 html，那么您可以尝试以下操作:

 var p = $('p').map(function(){
       return this.innerHTML;
    }).get();

    console.log(p);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p id="para">This is some text</p> and then this is some more<p>hello</p>

上面的另一个类似版本，具有 html() 函数。

  var p = $('p').map(function(){
           return $(this).html();
        }).get();

        console.log(p);

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
    <p id="para">This is some text</p> and then this is some more<p>hello</p>