window.onload = function(){ changeColor(); } function changeColor(){ var r = parseInt(Math.random() * 255); var g = parseInt(Math.random() * 255); var b = parseInt(Math.random() * 255); var colorHex = r.toString(16) + g.toString(16) + b.toString(16); document.body.bgCo...
同时把 x 挂到 Function 的 prototype 属性上，即 Function.prototype = x 同时还可以把 x.constructor...
var $ = function(id){ var obj = document.getElementById(id); obj.setColor = function(color){ this.style.color = color; return this; }; obj.setBgColor = function(color){ this.style.backgroundColor = color; return this; // 返回this对象,启动级联 }; obj.setFontSize = function(size){...
document.fgColor //设置前景色(文本颜色) document.linkColor //未点击过的链接颜色 document.alinkColor //激活链接(焦点在此链接上)的颜色 document.vlinkColor //已点击过的链接颜色 document.URL //设置URL属性从而在同一窗口打开另一网页 document.fileCreatedDate //文件建立日期,只读属性 document.fileModified...
sayColor:function(){ alert(this.color); // 打印局部的color;=>blue;} };四函数属性和⽅法 // JS中的函数是对象,因此函数也有属性和⽅法;包含length和prototype;// length属性:表⽰函数希望接收到命名参数的个数;function box(name,age){ alert(name+age);} alert(box.length); // 2s //...
玩玩Sass 自带的一些函数,有字符串函数(String Functions)、数字函数(Number Functions)、列表函数(List Functions)、颜色函数(Color Functions)、Introspection 函数(Introspection Functions)、三元函数(Miscellaneous Function) 1. 字符串函数 1.1 quote()
+ 1 It generates a random background color 15th May 2020, 8:10 AM ycsvenom + 1 Thank you, YCS-VENOM! What if I wanted to trigger a random animation event on click and the options are: 1. The block moves to the left 2. The block moves up 3. The block moves to the right? 15t...
('|' + " hello world ".trim() + '|');//输出: '|hello world|'//添加数字的取整函数Number.method("integer",function(){//可以通过此种方式调用函数,如:Math.random() == Math['random']() == Math["random"]()returnMath[this< 0 ? 'ceil' : 'floor'](this);});alert((-10 / 3...
width: random(666); //传个参 } //编译为: div { height: 0.3649; width: 403; } 3. 列表函数 常用 3.1 length() nth() length($list),返回$list的长度值; nth($list, $n),返回$list中指定的某个$n,且$n必须是大于0的整数; Javascript的Array()的索引是从0开始的,厄...有点扯远了,用过...
Hi, I see many authors (myself included) rely on JavaScript's Math.random() to generate a number they can then use to randomize colors, positions, animation delays etc. While it's fairly straightforward to do so (notably with custom prop...