自己封装的常用javascript函数分享

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都是些常用的功能,这里就不多废话了,小伙伴们自己看下就明白了

奉上代码

代码如下:
生成随机数 function rnd(n,m) { return Math.random()*(m-n)+n; } function time2date(t) { function d(n){return n<10?'0'+n:''+n;} var oDate=new Date(t*1000); return oDate.getFullYear()+'-'+d(oDate.getMonth()+1)+'-'+d(oDate.getDate())+' '+d(oDate.getHours())+':'+d(oDate.getMinutes())+':'+d(oDate.getSeconds()); } function time2day(t) { function d(n){return n<10?'0'+n:''+n;} var oDate=new Date(t*1000); return oDate.getFullYear()+'-'+d(oDate.getMonth()+1)+'-'+d(oDate.getDate()); } //拖拽 function drag(objEv,objMove,fnMoveCallBack) { var disX=0,disY=0; objEv.onmousedown=function (ev) { var oEvent=ev||event; disX=(document.documentElement.scrollLeft||document.body.scrollLeft)+oEvent.clientX-objMove.offsetLeft; disY=(document.documentElement.scrollTop||document.body.scrollTop)+oEvent.clientY-objMove.offsetTop; if(objEv.setCapture) { objEv.onmousemove=fnMove; objEv.onmouseup=fnUp; objEv.setCapture(); } else { document.onmousemove=fnMove; document.onmouseup=fnUp; return false; } }; function fnMove(ev) { var oEvent=ev||event; var l=(document.documentElement.scrollLeft||document.body.scrollLeft)+oEvent.clientX-disX; var t=(document.documentElement.scrollTop||document.body.scrollTop)+oEvent.clientY-disY; fnMoveCallBack(l,t); } function fnUp() { this.onmousemove=null; this.onmouseup=null; if(this.releaseCapture)this.releaseCapture(); } } function mouseScroll(obj,fnCallBack) { bindEvent(obj,'mousewheel',fnScroll); bindEvent(obj,'DOMMouseScroll',fnScroll); function fnScroll(ev) { var oEvent=ev||event; var bDown; if(oEvent.wheelDelta) { bDown=oEvent.wheelDelta<0; } else { bDown=oEvent.detail>0; } fnCallBack(bDown); if(oEvent.preventDefault)oEvent.preventDefault(); return false; } } //摆动运动 zns.site.fx.swing=function (obj,cur,target,fnDo,fnEnd,acc) { if(zns.site.fx.browser_test.IE6) { fnDo&&fnDo.call(obj,target); fnEnd&&fnEnd.call(obj,target); return; } if(!acc)acc=0.1; var now={}; var x=0; //0-100 if(!obj.__swing_v)obj.__swing_v=0; if(!obj.__last_timer)obj.__last_timer=0; var t=new Date().getTime(); if(t-obj.__last_timer>20) { fnMove(); obj.__last_timer=t; } clearInterval(obj.timer); obj.timer=setInterval(fnMove,20); function fnMove(){ if(x<50) { obj.__swing_v+=acc; } else { obj.__swing_v-=acc; } //if(Math.abs(obj.__flex_v)>MAX_SPEED)obj.__flex_v=obj.__flex_v>0?MAX_SPEED:-MAX_SPEED; x+=obj.__swing_v; //alert(x+','+obj.__swing_v); for(var i in cur) { now[i]=(target[i]-cur[i])*x/100+cur[i]; } if(fnDo)fnDo.call(obj,now); if(/*Math.abs(obj.__swing_v)<1 || */Math.abs(100-x)<1) { clearInterval(obj.timer); if(fnEnd)fnEnd.call(obj,target); obj.__swing_v=0; } } }; //弹性运动 zns.site.fx.flex=function (obj,fs,ms) { if(zns.site.fx.browser_test.IE6) { fnDo&&fnDo.call(obj,target); return; } var MAX_SPEED=16; if(!fs)fs=6; if(!ms)ms=0.75; var now={}; var x=0; //0-100 if(!obj.__flex_v)obj.__flex_v=0; if(!obj.__last_timer)obj.__last_timer=0; var t=new Date().getTime(); if(t-obj.__last_timer>20) { fnMove(); obj.__last_timer=t; } clearInterval(obj.timer); obj.timer=setInterval(fnMove,20); function fnMove(){ obj.__flex_v+=(100-x)/fs; obj.__flex_v*=ms; if(Math.abs(obj.__flex_v)>MAX_SPEED)obj.__flex_v=obj.__flex_v>0?MAX_SPEED:-MAX_SPEED; x+=obj.__flex_v; for(var i in cur) { now[i]=(target[i]-cur[i])*x/100+cur[i]; } if(fnDo)fnDo.call(obj,now); if(Math.abs(obj.__flex_v)<1 && Math.abs(100-x)<1) { clearInterval(obj.timer); if(fnEnd)fnEnd.call(obj,target); obj.__flex_v=0; } } };

原文链接:https://www.f2er.com/js/56449.html

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