function Vector(x, y) {
this.x = x;
this.y = y;
}
Vector.prototype.plus = function plus(otherVector) {
var x = this.x + otherVector.x;
var y = this.y + otherVector.y;
return new Vector(x, y);
};
Vector.prototype.minus = function minus(otherVector) {
var x = this.x - otherVector.x;
var y = this.y - otherVector.y;
return new Vector(x, y);
};
Vector.prototype.toString = function toString() {
return 'Vector { x: ' + this.x + ', y: ' + this.y + ' }';
}
console.log(new Vector(1, 2).plus(new Vector(2, 3)));
async
Set this Boolean attribute to indicate that the browser should, if possible, execute the script asynchronously.
It has no effect on inline scripts (i.e., scripts that don't have the src attribute).
// parseInt('string') is NaN
// 99 > NaN is falseNaN === NaN // is false 
example.com/api/v1/resource, т.е. старый frontend будет грузить v1 API, обновленный будет грузить v2. 
качай страницу на пхп,открывай айфрайме парс id ,профитКак получить элемент из чужого iframe ,выдаёт ошибку https?
server {
listen 80 ;
listen [::]:80;
server_name example.com www.example.com;
return 301 https://example.com$request_uri;
}
server {
listen 443 ssl ;
listen [::]:443 ssl ;
server_name localhost www.example.com;
return 301 https://example.com$request_uri;
}
server {
listen 443 ssl default_server;
listen [::]:443 ssl default_server;
server_name example.com
... тут будет основной конфиг для вашего сервера
}