How does the js regular match the content in <pre><code>xxx&lt;/code</pre>

"

first 


console.log(1);

second 


console.log(2);
"

want to extract the contents of pre > code and replace them

these are all strings, not dom

Javascript
Feb.28,2021

provide an irregular way

if it is jq 

var html="
console.log(1);
 ";
Console.log ($(html). Text ());

if you have to use js 

var textEle=document.createElement("div");
textEle.innerHTML="<span></span>";
console.log(textEle.innerText);
var html="
console.log(1);
 
console.log(2);
 ";
Html.replace (/ 
(.*?)<\/code><\/pre>/g, "$1");
 


 if there is a regular match, that's it 


let str = `
  

  
console.log(1);


 second 


console.log(2);
 `;

Str.match (/ (? < = 
)[\s\S]*?(?=<\/code><\/pre>)/gi);  // 

str.replace(/(?<=
)[\s\S]*?(?=<\/code><\/pre>)/gi, 'asdf');  // 
)

 where  / (? < = somePattern) /  is "zero width positive review assertion" < del > thief Kiel length < / del >,  / (? = somePattern) /  is "zero width positive prediction advance assertion" < del > thief Kiel length * 2 < / del >,  / somePattern/g  is a global match,  / somePattern/i  is case insensitive,  / somePattern*?/

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