JS常用插件

做页面常用的东西，写这里用的时候省得去找了

html5shiv：解决ie9以下浏览器对html5新增标签的不识别，并导致CSS不起作用的问题。

respond.min:让不支持css3 Media Query的浏览器包括IE6-IE8等其他浏览器支持查询。

由于IE6/IE7/IE8还有很大一部分用户，为了让网站浏览者都能正常的访问HTML5网站，故这两种方案还是需要的，

下面是两个解决方法的cdn地址写法：

1 <!--[if lt IE 9]>(终极解决方案)快捷键　cc:ie6
2 
3 　　<script src="//cdn.bootcss.com/respond.js/1.4.2/respond.js"></script>
4 
5  　　<script src="http://cdn.bootcss.com/html5shiv/3.7.2/html5shiv.min.js"></script>
6 
7 <![endif]—>

也有一种让ie8及以下支持css3媒体查询的css3-mediaqueries.js 像上面引入也可，但是会出现闪屏不是特别推荐使用，上面是最常用的

在这里可以查到bootstrap的其他CDN地址http://www.bootcdn.cn

normalize.css 在默认的HTML元素样式上提供了跨浏览器的高度一致性

particle.js 背景粒子插件

  1 <!-- 页面代码 -->
  2 <!DOCTYPE html>
  3 <html>
  4 
  5 <head>
  6   <meta charset="utf-8" />
  7   <title>particles.js</title>
  8   <style>
  9 
 10     #particles-js {
 11    /*  注意 必须要有背景，页面才能出来 */
 12       background-color: black;
 13     }
 14   </style>
 15 
 16 
 17 </head>
 18 
 19 <body>
 20   <div id="particles-js"></div>
 21 </body>
 22 
 23 //JS代码
 24 <script src="particles/particles.min.js"></script>
 25 <script>
 26   /* particlesJS.load(@dom-id, @path-json, @callback (optional)); */
 27 particlesJS('particles-js', {
 28     "particles": {
 29       "number": {
 30         "value": 100,
 31         "density": {
 32           "enable": true,
 33           "value_area": 800
 34         }
 35       },
 36       "color": {
 37         "value": "#ffffff"
 38       },
 39       "shape": {
 40         "type": "circle",
 41         "stroke": {
 42           "width": 0,
 43           "color": "#000000"
 44         },
 45         "polygon": {
 46           "nb_sides": 5
 47         },
 48         "image": {
 49           "src": "img/github.svg",
 50           "width": 100,
 51           "height": 100
 52         }
 53       },
 54       "opacity": {
 55         "value": 0.5,
 56         "random": false,
 57         "anim": {
 58           "enable": false,
 59           "speed": 1,
 60           "opacity_min": 0.1,
 61           "sync": false
 62         }
 63       },
 64       "size": {
 65         "value": 5,
 66         "random": true,
 67         "anim": {
 68           "enable": false,
 69           "speed": 40,
 70           "size_min": 0.1,
 71           "sync": false
 72         }
 73       },
 74       "line_linked": {
 75         "enable": true,
 76         "distance": 150,
 77         "color": "#80c341",
 78         "opacity": 0.4,
 79         "width": 1
 80       },
 81       "move": {
 82         "enable": true,
 83         "speed": 6,
 84         "direction": "none",
 85         "random": false,
 86         "straight": false,
 87         "out_mode": "out",
 88         "attract": {
 89           "enable": false,
 90           "rotateX": 600,
 91           "rotateY": 1200
 92         }
 93       }
 94     },
 95     "interactivity": {
 96       "detect_on": "canvas",
 97       "events": {
 98         "onhover": {
 99           "enable": true,
100           "mode": ["repulse"]
101         },
102         "onclick": {
103           "enable": true,
104           "mode": "push"
105         },
106         "resize": true
107       },
108       "modes": {
109         "grab": {
110           "distance": 400,
111           "line_linked": {
112             "opacity": 1
113           }
114         },
115         "bubble": {
116           "distance": 400,
117           "size": 40,
118           "duration": 2,
119           "opacity": 8,
120           "speed": 3
121         },
122         "repulse": {
123           "distance": 200
124         },
125         "push": {
126           "particles_nb": 4
127         },
128         "remove": {
129           "particles_nb": 2
130         }
131       }
132     },
133     "retina_detect": true,
134     "config_demo": {
135       "hide_card": false,
136       "background_color": "#b61924",
137       "background_image": "",
138       "background_position": "50% 50%",
139       "background_repeat": "no-repeat",
140       "background_size": "cover"
141     }
142   });
143 </script>
144 </html>

效果图：

verifyCode 纯JS HTML5 制作的图形验证码插件

https://github.com/ace0109/verifyCode/blob/master/index.html

JS代码

!(function(window, document) {
    function GVerify(options) { //创建一个图形验证码对象，接收options对象为参数
        this.options = { //默认options参数值
            id: "", //容器Id
            canvasId: "verifyCanvas", //canvas的ID
             "100", //默认canvas宽度
            height: "30", //默认canvas高度
            type: "blend", //图形验证码默认类型blend:数字字母混合类型、number:纯数字、letter:纯字母
            code: ""
        }

        if(Object.prototype.toString.call(options) == "[object Object]"){//判断传入参数类型
            for(var i in options) { //根据传入的参数，修改默认参数值
                this.options[i] = options[i];
            }
        }else{
            this.options.id = options;
        }

        this.options.numArr = "0,1,2,3,4,5,6,7,8,9".split(",");
        this.options.letterArr = getAllLetter();

        this._init();
        this.refresh();
    }

    GVerify.prototype = {
        /**版本号**/
        version: '1.0.0',

        /**初始化方法**/
        _init: function() {
            var con = document.getElementById(this.options.id);
            var canvas = document.createElement("canvas");
            this.options.width = con.offsetWidth > 0 ? con.offsetWidth : "100";
            this.options.height = con.offsetHeight > 0 ? con.offsetHeight : "30";
            canvas.id = this.options.canvasId;
            canvas.width = this.options.width;
            canvas.height = this.options.height;
            canvas.style.cursor = "pointer";
            canvas.innerHTML = "您的浏览器版本不支持canvas";
            con.appendChild(canvas);
            var parent = this;
            canvas.onclick = function(){
                parent.refresh();
            }
        },

        /**生成验证码**/
        refresh: function() {
            this.options.code = "";
            var canvas = document.getElementById(this.options.canvasId);
            if(canvas.getContext) {
                var ctx = canvas.getContext('2d');
            }else{
                return;
            }

            ctx.textBaseline = "middle";

            ctx.fillStyle = randomColor(180, 240);
            ctx.fillRect(0, 0, this.options.width, this.options.height);

            if(this.options.type == "blend") { //判断验证码类型
                var txtArr = this.options.numArr.concat(this.options.letterArr);
            } else if(this.options.type == "number") {
                var txtArr = this.options.numArr;
            } else {
                var txtArr = this.options.letterArr;
            }

            for(var i = 1; i <= 4; i++) {
                var txt = txtArr[randomNum(0, txtArr.length)];
                this.options.code += txt;
                ctx.font = randomNum(this.options.height/2, this.options.height) + 'px SimHei'; //随机生成字体大小
                ctx.fillStyle = randomColor(50, 160); //随机生成字体颜色
                ctx.shadowOffsetX = randomNum(-3, 3);
                ctx.shadowOffsetY = randomNum(-3, 3);
                ctx.shadowBlur = randomNum(-3, 3);
                ctx.shadowColor = "rgba(0, 0, 0, 0.3)";
                var x = this.options.width / 5 * i;
                var y = this.options.height / 2;
                var deg = randomNum(-30, 30);
                /**设置旋转角度和坐标原点**/
                ctx.translate(x, y);
                ctx.rotate(deg * Math.PI / 180);
                ctx.fillText(txt, 0, 0);
                /**恢复旋转角度和坐标原点**/
                ctx.rotate(-deg * Math.PI / 180);
                ctx.translate(-x, -y);
            }
            /**绘制干扰线**/
            for(var i = 0; i < 4; i++) {
                ctx.strokeStyle = randomColor(40, 180);
                ctx.beginPath();
                ctx.moveTo(randomNum(0, this.options.width), randomNum(0, this.options.height));
                ctx.lineTo(randomNum(0, this.options.width), randomNum(0, this.options.height));
                ctx.stroke();
            }
            /**绘制干扰点**/
            for(var i = 0; i < this.options.width/4; i++) {
                ctx.fillStyle = randomColor(0, 255);
                ctx.beginPath();
                ctx.arc(randomNum(0, this.options.width), randomNum(0, this.options.height), 1, 0, 2 * Math.PI);
                ctx.fill();
            }
        },

        /**验证验证码**/
        validate: function(code){
            var code = code.toLowerCase();
            var v_code = this.options.code.toLowerCase();
            if(code == v_code){
                return true;
            }else{
                this.refresh();
                return false;
            }
        }
    }
    /**生成字母数组**/
    function getAllLetter() {
        var letterStr = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z";
        return letterStr.split(",");
    }
    /**生成一个随机数**/
    function randomNum(min, max) {
        return Math.floor(Math.random() * (max - min) + min);
    }
    /**生成一个随机色**/
    function randomColor(min, max) {
        var r = randomNum(min, max);
        var g = randomNum(min, max);
        var b = randomNum(min, max);
        return "rgb(" + r + "," + g + "," + b + ")";
    }
    window.GVerify = GVerify;
})(window, document);

verifyCode

Html代码

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>图形验证码</title>
    </head>
    <body>
        <div id="v_container" style=" 200px;height: 50px;"></div>
        <input type="text" id="code_input" value="" placeholder="请输入验证码"/><button id="my_button">验证</button>
    </body>
    <script src="js/gVerify.js"></script>
    <script>
        var verifyCode = new GVerify("v_container");

        document.getElementById("my_button").onclick = function(){
            var res = verifyCode.validate(document.getElementById("code_input").value);
            if(res){
                alert("验证正确");
            }else{
                alert("验证码错误");
            }
        }
    </script>
</html>

html

时间格式化插件 moment

object 和 url参数互相转化插件 qs

  formats: formats,
  parse: parse,
  stringify: stringify

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原文地址：https://www.cnblogs.com/it-Ren/p/10610631.html