如何通过javascript删除.jpg后的内容

Question

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

我希望在.jpg

之后删除或替换内容

Answer 1

您可以使用replace()替换＆＃39; jpg *＆＃39;只需＆＃39; jpg＆＃39;。

之后的一切

＆＃13;

＆＃13;

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);

＆＃13;

＆＃13;

＆＃13;

Answer 2

您可以substring删除＆＃39; .jpg＆＃39;。

之后的所有内容

＆＃13;

＆＃13;

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);

＆＃13;

＆＃13;

＆＃13;