function作为右值

function作为右值

by kixi

CSS

/*
清晰网
kixi.com.cn
从javascript开始
*/

JavaScript

function distance(x1,y1,x2,y2){
    var dx = x2 - x1;
    var dy = y2 - y1;
    return Math.sqrt(dx*dx + dy*dy);
}

var d = distance;
var kixi = d(1,1,2,2);
alert(kixi);