1. escape

const a1 = 'Visit W3School!';
const b1 = '?!=()#%&'
console.log(escape(a1)); // Visit%20W3School%21
console.log(escape(b1)); // %3F%21%3D%28%29%23%25%26
const a2 = 'Visit%20W3School%21';
const b2 = '3F%21%3D%28%29%23%25%26';
console.log(unescape(a2)); // Visit W3School!
console.log(unescape(b2)); // ?!=()#%&

2. encodeURI

const a1 = 'http://www.w3school.com.cn/My first/';
const b1 = ',/?:@&=+$#'
console.log((a1));
.((b1));




