modernizrFlexbox.js

/* modernizer flexbox functionality */
!function(e,n,t){function r(e,n){return typeof e===n}function o(){var e,n,t,o,s,i,a;for(var l in C){if(e=[],n=C[l],n.name&&(e.push(n.name.toLowerCase()),n.options&&n.options.aliases&&n.options.aliases.length))for(t=0;t<n.options.aliases.length;t++)e.push(n.options.aliases[t].toLowerCase());for(o=r(n.fn,"function")?n.fn():n.fn,s=0;s<e.length;s++)i=e[s],a=i.split("."),1===a.length?Modernizr[a[0]]=o:(!Modernizr[a[0]]||Modernizr[a[0]]instanceof Boolean||(Modernizr[a[0]]=new Boolean(Modernizr[a[0]])),Modernizr[a[0]][a[1]]=o),g.push((o?"":"no-")+a.join("-"))}}function s(e){var n=x.className,t=Modernizr._config.classPrefix||"";if(_&&(n=n.baseVal),Modernizr._config.enableJSClass){var r=new RegExp("(^|\\s)"+t+"no-js(\\s|$)");n=n.replace(r,"$1"+t+"js$2")}Modernizr._config.enableClasses&&(n+=" "+t+e.join(" "+t),_?x.className.baseVal=n:x.className=n)}function i(e,n){return function(){return e.apply(n,arguments)}}function a(e,n,t){var o;for(var s in e)if(e[s]in n)return t===!1?e[s]:(o=n[e[s]],r(o,"function")?i(o,t||n):o);return!1}function l(e,n){return!!~(""+e).indexOf(n)}function f(){return"function"!=typeof n.createElement?n.createElement(arguments[0]):_?n.createElementNS.call(n,"http://www.w3.org/2000/svg",arguments[0]):n.createElement.apply(n,arguments)}function u(e){return e.replace(/([a-z])-([a-z])/g,function(e,n,t){return n+t.toUpperCase()}).replace(/^-/,"")}function d(e){return e.replace(/([A-Z])/g,function(e,n){return"-"+n.toLowerCase()}).replace(/^ms-/,"-ms-")}function p(){var e=n.body;return e||(e=f(_?"svg":"body"),e.fake=!0),e}function c(e,t,r,o){var s,i,a,l,u="modernizr",d=f("div"),c=p();if(parseInt(r,10))for(;r--;)a=f("div"),a.id=o?o[r]:u+(r+1),d.appendChild(a);return s=f("style"),s.type="text/css",s.id="s"+u,(c.fake?c:d).appendChild(s),c.appendChild(d),s.styleSheet?s.styleSheet.cssText=e:s.appendChild(n.createTextNode(e)),d.id=u,c.fake&&(c.style.background="",c.style.overflow="hidden",l=x.style.overflow,x.style.overflow="hidden",x.appendChild(c)),i=t(d,e),c.fake?(c.parentNode.removeChild(c),x.style.overflow=l,x.offsetHeight):d.parentNode.removeChild(d),!!i}function m(n,r){var o=n.length;if("CSS"in e&&"supports"in e.CSS){for(;o--;)if(e.CSS.supports(d(n[o]),r))return!0;return!1}if("CSSSupportsRule"in e){for(var s=[];o--;)s.push("("+d(n[o])+":"+r+")");return s=s.join(" or "),c("@supports ("+s+") { #modernizr { position: absolute; } }",function(e){return"absolute"==getComputedStyle(e,null).position})}return t}function h(e,n,o,s){function i(){d&&(delete N.style,delete N.modElem)}if(s=r(s,"undefined")?!1:s,!r(o,"undefined")){var a=m(e,o);if(!r(a,"undefined"))return a}for(var d,p,c,h,v,y=["modernizr","tspan"];!N.style;)d=!0,N.modElem=f(y.shift()),N.style=N.modElem.style;for(c=e.length,p=0;c>p;p++)if(h=e[p],v=N.style[h],l(h,"-")&&(h=u(h)),N.style[h]!==t){if(s||r(o,"undefined"))return i(),"pfx"==n?h:!0;try{N.style[h]=o}catch(g){}if(N.style[h]!=v)return i(),"pfx"==n?h:!0}return i(),!1}function v(e,n,t,o,s){var i=e.charAt(0).toUpperCase()+e.slice(1),l=(e+" "+E.join(i+" ")+i).split(" ");return r(n,"string")||r(n,"undefined")?h(l,n,o,s):(l=(e+" "+b.join(i+" ")+i).split(" "),a(l,n,t))}function y(e,n,r){return v(e,t,t,n,r)}var g=[],C=[],w={_version:"3.1.0",_config:{classPrefix:"",enableClasses:!0,enableJSClass:!0,usePrefixes:!0},_q:[],on:function(e,n){var t=this;setTimeout(function(){n(t[e])},0)},addTest:function(e,n,t){C.push({name:e,fn:n,options:t})},addAsyncTest:function(e){C.push({name:null,fn:e})}},Modernizr=function(){};Modernizr.prototype=w,Modernizr=new Modernizr;var x=n.documentElement,_="svg"===x.nodeName.toLowerCase(),S="Moz O ms Webkit",b=w._config.usePrefixes?S.toLowerCase().split(" "):[];w._domPrefixes=b;var E=w._config.usePrefixes?S.split(" "):[];w._cssomPrefixes=E;var z={elem:f("modernizr")};Modernizr._q.push(function(){delete z.elem});var N={style:z.elem.style};Modernizr._q.unshift(function(){delete N.style}),w.testAllProps=v,w.testAllProps=y,Modernizr.addTest("flexbox",y("flexBasis","1px",!0)),o(),s(g),delete w.addTest,delete w.addAsyncTest;for(var P=0;P<Modernizr._q.length;P++)Modernizr._q[P]();e.Modernizr=Modernizr}(window,document);

Flexbox functionality snippet C/O Modernizr