由JavaScript

Question

var lochash = "#http://www.thepresidiumschool.com/news_image/102%20NRD_7420.jpg&lg=1&slide=0"; 

我想要的.jpg

Answer 1

可以substring刪除名爲.jpg後的一切。

var lochash = "#http://www.thepresidiumschool.com/news_image/102%20NRD_7420.jpg&lg=1&slide=0"; 
 

 
lochash = lochash.substring(0, lochash.indexOf('.jpg')+4); 
 
console.log(lochash);

Answer 2

可以使用replace()替換「JPG *」和其後的內容只有「JPG」後取出或更換內容的.jpg後如何刪除的內容。

var lochash = "#http://www.thepresidiumschool.com/news_image/102%20NRD_7420.jpg&lg=1&slide=0"; 
 

 
var newlochash = lochash.replace(/jpg(.)+/,'jpg'); 
 

 
console.log(newlochash);