如何在ALT

Question

改變字符串IMG與價值如何去除img標籤，並與ALT

var data="how are you <img src='blabla/emot/smile.gif' alt=':)'> yes <img src='blabla/emot/smile.gif' alt=':)'> <img src='blabla/emot/melet.gif' alt=':P'>"; 

的值來替換它，最終結果

var data="how are you :) yes :) :P"; 

我想消除img標籤並用alt中的值替換，使用jQuery或javascript

Answer 1

jQuery單線程很簡單：

var data = "how are you <img src='blabla/emot/smile.gif' alt=':)'> yes <img src='blabla/emot/smile.gif' alt=':)'> <img src='blabla/emot/melet.gif' alt=':P'>"; 

var result = 
    $('<div>').html(data)     // create `<div>` and put data as contents 
       .find('img')    // find `<img>` elements in `<div>` 
       .replaceWith(function() { // replace `<img>` elements 
        return this.alt;  // with their `alt` attributes 
       }) 
       .end()      // return back to `<div>` element 
       .text();     // get text contents 

console.log(result); // "how are you :) yes :) :P"