如何在JS中修剪字符串末尾的点?
输入:
const string = 'ABCD.txt'
输出:
const string = 'ABCD'
我该怎么办?
谢谢你帮我
const string = "ABCD.txt";
const result = string.replace(/.[^/.]+$/, "");
const index = string.lastIndexOf('.');
const before = string.slice(0, index);