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<!DOCTYPE html>










<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <!-- Google Optimize Anti-flicker snippet (recommended)  -->
        <style>.async-hide { opacity: 0 !important} </style>
        <style>.promo{background:#222528;position:fixed;z-index:1001!important;left:0;top:0;right:0;max-height:48px;min-height:48px;padding-top:0!important;padding-bottom:0!important}.promo,.promo p{-webkit-box-align:center;-ms-flex-align:center;align-items:center}.promo p{font-size:.8125rem;line-height:1rem;color:#fff;margin-bottom:0;margin-top:0;margin:0 auto;display:-webkit-box;display:-ms-flexbox;display:flex;font-weight:700}@media only screen and (max-width:650px){.promo p{font-size:.6875rem}}.promo span{overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}.promo a{color:#fff!important;text-decoration:underline!important}.promo a.btn{background:#d0021b;padding:7px 20px;text-decoration:none!important;font-weight:700;margin-left:10px;margin-right:10px;white-space:nowrap;border-radius:5px}@media only screen and (max-width:650px){.promo a.btn{font-size:.6875rem;padding:7px 10px}}.promo.container{padding-top:8px;padding-bottom:8px}@media only screen and (min-width:1050px){.promo.container{padding-top:0;padding-bottom:0}}.promo .actions{-ms-flex-wrap:nowrap;flex-wrap:nowrap}.promo .actions__left{-ms-flex-preferred-size:100%;flex-basis:100%;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.promo .actions__right{-ms-flex-preferred-size:40px;flex-basis:40px;margin-top:0;margin-bottom:0;-webkit-box-pack:end;-ms-flex-pack:end;justify-content:flex-end}.promo.hidden{display:none}.promo.show{display:-webkit-box!important;display:-ms-flexbox!important;display:flex!important}.promo.show .container__inner{-webkit-box-flex:1;-ms-flex:1;flex:1}.promo.fixed{position:fixed}.promo.show+header.header{margin-top:48px}.header{background:#fff;-webkit-box-shadow:0 1px 0 #dde2e5;box-shadow:0 1px 0 #dde2e5}.header .actions__left,.header__bottom__events{max-width:100%!important;margin:0}.header .header__events-all{margin:0;display:-webkit-box;display:-ms-flexbox;display:flex;position:relative}.header .header__events-all .header__event-slot{-webkit-box-flex:1;-ms-flex:1 100%;flex:1 100%;border-right:1px solid #dde2e5;margin-top:3px;margin-bottom:3px;padding-left:15px;text-align:left;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;padding-right:5px;min-width:300px}.header .header__events-all .header__event-slot:hover{text-decoration:none!important}.header .header__events-all .header__event-slot img{min-width:40px;height:40px}.header .header__events-all .header__event-slot div{margin-left:10px}.header .header__events-all .header__event-slot span{font-weight:700!important;font-size:.75rem;margin-bottom:0!important;margin-top:0;display:block;line-height:1.125rem;text-align:left}.header .header__events-all .header__event-slot p{font-weight:400;font-size:.625rem;line-height:130%!important;color:#495057!important;margin:0}@media only screen and (min-width:1050px){.header .header__events-all .header__event-slot p{font-size:.625rem}}.header .header__events-all .header__event-slot:first-child{padding-left:0}.header .header__events-all .header__event-slot:last-child{padding-right:0;border-right:0}@media only screen and (min-width:1050px){.header__bottom,.header__middle,.header__top{position:relative;white-space:nowrap}}.header__top{padding:10px 0}@media only screen and (min-width:800px){.header__top{padding:5px 0}}.header__bottom{padding:5px 0;z-index:29;max-width:100%}.header__bottom a{font-size:.8125rem}.header__bottom .trending{margin-left:0;margin-right:0}.header__bottom .actions{-webkit-box-align:start;-ms-flex-align:start;align-items:flex-start}.header__bottom .actions__left{max-width:calc(100% + 8px)}@media only screen and (min-width:800px){.header__bottom .actions__left{max-width:calc(100% + 24px)}}.header__bottom .actions__right{-webkit-box-flex:1;-ms-flex:1 1 auto;flex:1 1 auto;display:none}@media only screen and (min-width:1050px){.header__bottom .actions__right{display:-webkit-box;display:-ms-flexbox;display:flex}}.header__middle{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-flow:row wrap;flex-flow:row wrap}@media only screen and (min-width:1050px){.header__middle{-ms-flex-wrap:nowrap;flex-wrap:nowrap}}.header__top .actions__left{-webkit-box-align:center;-ms-flex-align:center;align-items:center;-ms-flex-line-pack:center;align-content:center}@media only screen and (min-width:1050px){.header__top .actions__right{max-width:430px}}.no-style.header__nav li:nth-child(3){font-weight:700}.no-style.header__nav li:nth-child(3) a{color:#0e5ef1!important}.header__bottom__events::after{background:-webkit-gradient(linear,left top,right top,color-stop(0,rgba(255,255,255,0)),to(#fff));background:linear-gradient(90deg,rgba(255,255,255,0) 0,#fff 100%);content:'';position:absolute;height:60px;right:10px;width:25px}@media only screen and (min-width:1050px){.header__bottom__events::after{display:none}}.contribute-link{font-weight:400;font-size:.6875rem;color:#000!important;position:relative;padding-left:10px}.contribute-link:hover{color:#00791d!important;text-decoration:none!important}.contribute-link::before{content:'';width:1px;height:12px;position:absolute;top:50%;-webkit-transform:translateY(-50%);transform:translateY(-50%);background:rgba(0,0,0,.1);left:-1px}.my-0{margin-top:0!important;margin-bottom:0!important}.header__desc.my-0{margin-left:0}.header__bottom__events .actions__left{max-width:100%!important;overflow-x:scroll;-ms-overflow-style:none;scrollbar-width:none;display:block;scroll-behavior:smooth;min-width:100%}.header__bottom__events .actions__left::-webkit-scrollbar{display:none}.header__bottom__events .actions__left:-webkit-scrollbar-thumb{background:#fff}.logo{line-height:1rem}.header{position:relative;z-index:41;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.header .input:focus,.header input[type=password]:focus,.header input[type=text]:focus{border:1px solid #00791d}.header a:not(.button):not(.login__action):not(.active){text-decoration:none;color:#222}.header a:not(.button):not(.login__action):not(.active):hover{text-decoration:underline;color:#222}.header__items{display:none;-ms-flex-wrap:wrap;flex-wrap:wrap}@media only screen and (min-width:1050px){.header__items{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row}.header__items nav{position:relative;background:0 0;padding:0;left:0;top:0;line-height:inherit;display:block;-webkit-box-shadow:none;box-shadow:none;max-width:100%;max-height:80px}}.header__items>div{width:100%;margin-bottom:32px;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-flow:column nowrap;flex-flow:column nowrap}@media only screen and (min-width:552px){.header__items>div:not(:nth-last-child(-n+2)){margin-bottom:32px}}@media only screen and (min-width:552px) and (max-width:1050px){.header__items>div{-webkit-box-flex:0;-ms-flex-positive:0;flex-grow:0;-ms-flex-negative:0;flex-shrink:0;-ms-flex-preferred-size:calc(99.7% * 1/2 - (32px - 32px * 1/2));flex-basis:calc(99.7% * 1/2 - (32px - 32px * 1/2));max-width:calc(99.7% * 1/2 - (32px - 32px * 1/2));width:calc(99.7% * 1/2 - (32px - 32px * 1/2))}.header__items>div:nth-child(1n){margin-right:32px;margin-left:0}.header__items>div:last-child{margin-right:0}.header__items>div:nth-child(2n){margin-right:0;margin-left:auto}}@media only screen and (min-width:800px) and (max-width:1050px){.header__items>div{-webkit-box-flex:0;-ms-flex-positive:0;flex-grow:0;-ms-flex-negative:0;flex-shrink:0;-ms-flex-preferred-size:calc(99.7% * 1/4 - (32px - 32px * 1/4));flex-basis:calc(99.7% * 1/4 - (32px - 32px * 1/4));max-width:calc(99.7% * 1/4 - (32px - 32px * 1/4));width:calc(99.7% * 1/4 - (32px - 32px * 1/4))}.header__items>div:nth-child(1n){margin-right:32px;margin-left:0}.header__items>div:last-child{margin-right:0}.header__items>div:nth-child(4n){margin-right:0;margin-left:auto}}@media only screen and (min-width:1050px){.header__items>div{margin-bottom:0!important;margin-right:0!important;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row}}.header__items .language__switcher{display:none}.header__items .language__switcher .li-nav.active>a,.header__items .language__switcher>li.active>a{color:#fff!important}.header__items .language__switcher .li-nav.active>a:hover,.header__items .language__switcher>li.active>a:hover{color:#fff!important;background:#0e5ef1}.header__items .language__switcher .li-nav:hover>a,.header__items .language__switcher>li:hover>a{color:#fff}.header+main{display:block;min-height:210px;-webkit-transition:margin .15s ease;transition:margin .15s ease;margin-top:0!important}.header--hide .header+main{margin-top:50px}.header--hide .header__toggle{opacity:0;top:20px;visibility:hidden}.header--hide .header__logo{max-height:0}.header--hide .header__middle,.header--hide .header__top{max-height:0;overflow:hidden;padding-top:0;padding-bottom:0;border-color:transparent}.header--hide .header__bottom .vue-portal-target{top:3px;right:0;bottom:auto;left:auto;position:absolute}.header__middle,.header__top{-webkit-transition:all .15s ease;transition:all .15s ease}.header__middle{border-bottom:1px solid rgba(0,0,0,.1);z-index:33}.header__middle .vue-portal-target{width:100%}@media only screen and (min-width:1050px){.header__middle .vue-portal-target{display:none}}@media only screen and (min-width:1050px){.header__middle{line-height:5.75rem;text-align:left;padding:0;z-index:30}.header__middle .widget__heading{display:none}}.header__top>.actions__left{display:none}@media only screen and (min-width:1050px){.header__top>.actions__left{display:-webkit-box;display:-ms-flexbox;display:flex}}.header__top>.actions__right{-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1;margin-right:0;margin-top:0;margin-bottom:0;-webkit-box-pack:end;-ms-flex-pack:end;justify-content:flex-end}.header__top>.actions__right .dropdown__holder{width:calc(100vw - 16px);max-height:80vh}@media only screen and (min-width:600px){.header__top>.actions__right .dropdown__holder{width:auto}}.header__top>.actions__right>*{margin:0}.header__top>.actions__right .search{display:none}@media only screen and (min-width:1050px){.header__top>.actions__right>*{display:-webkit-box;display:-ms-flexbox;display:flex;white-space:nowrap}.header__top>.actions__right .search{display:block}}.header__top .user__login{display:block}.header__top .user__login>.button,.header__top .user__login>button{border-top-right-radius:0;border-bottom-right-radius:0}@media only screen and (min-width:1050px){.header__top{position:relative;right:auto;width:100%}}.header__logo{max-width:165px;position:absolute;top:8px;overflow:hidden;-webkit-transition:all .1s ease;transition:all .1s ease;z-index:32;line-height:2.25rem;height:36px;width:100px;margin-left:50px;-ms-flex-preferred-size:190px;flex-basis:190px}@media only screen and (min-width:800px){.header__logo{top:4px}}@media only screen and (min-width:1050px){.header__logo{position:relative;top:0;overflow:visible;margin-right:20px;margin-left:0;line-height:3.125rem;height:50px}.header__logo>*{width:165px}}@media only screen and (min-width:1280px){.header__logo{margin-right:30px}}.header__desc,.header__more>button{text-transform:capitalize;color:#666;letter-spacing:0;font-size:0;font-weight:400;line-height:1.5rem;vertical-align:top;font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI Variable","Segoe UI",system-ui,ui-sans-serif,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";-webkit-transition:font-size .15s ease-in-out;transition:font-size .15s ease-in-out}@media only screen and (min-width:1050px){.header__desc,.header__more>button{font-size:.6875rem}}.header__desc{display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;position:relative;width:auto}.header__topics{white-space:nowrap;float:right;position:relative}.header__topics *{display:inline-block;vertical-align:top}.header__topics a{font-size:.8125rem}@media only screen and (min-width:1050px){.header__topics{float:none}}.header__more{display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;vertical-align:top}.header__more:before{left:-12px}.header__more:after,.header__more:before{content:'';width:1px;height:12px;position:absolute;top:50%;-webkit-transform:translateY(-50%);transform:translateY(-50%);background:rgba(0,0,0,.1)}.header__more:after{right:-12px}.header__more:hover{cursor:pointer;color:rgba(0,0,0,.75)}.header__user{display:inline-block;vertical-align:top;white-space:nowrap;margin-left:8px}@media only screen and (min-width:1050px){.header__user{margin-left:0}}.header__user>div{display:inline-block;vertical-align:top}.header__user-nav a:not(.button){text-transform:uppercase;font-size:.75rem;font-weight:600}.header__user-nav a:not(.button):not(.active){opacity:.5}.header__user-nav a:not(.button):not(.active):hover{opacity:.75}.header__user-nav a:not(.button):hover{text-decoration:none}.header__user-nav a:not(.button).active{color:#222;cursor:default;text-decoration:none}.header__user-nav a:not(.button):before{margin-right:0}.header__user-nav a:not(.button):not(:last-child){margin-right:16px}@media only screen and (min-width:1050px){.header__user-nav a:not(.button):not(:last-child){margin-right:32px}}@media only screen and (min-width:1050px){.header__user-nav+.header__topics{margin-left:56px}}.header__search{display:none;vertical-align:top;margin-right:0}@media only screen and (min-width:1050px){.header__search{display:inline-block}}.header__search,.header__user{line-height:inherit}.header__nav{border-bottom:1px solid rgba(0,0,0,.1)}@media only screen and (min-width:800px){.header__nav{border-bottom:0}}.header__nav .button{margin-left:0}.header__nav .button__more{margin-right:20px}.header__nav .li-nav,.header__nav>li{-webkit-transition:all .15s ease;transition:all .15s ease}@media only screen and (min-width:1050px){.header__nav .li-nav,.header__nav>li{display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;vertical-align:middle;position:static;border:none;min-height:65px}.header__nav .li-nav:hover.has--subnav .nav .li-nav,.header__nav .li-nav:hover.has--subnav .nav>li,.header__nav>li:hover.has--subnav .nav .li-nav,.header__nav>li:hover.has--subnav .nav>li{white-space:normal}.header__nav .li-nav:hover.has--subnav .nav__subnav,.header__nav>li:hover.has--subnav .nav__subnav{opacity:1;top:100%;visibility:visible;-webkit-transition-delay:.25s;transition-delay:.25s}.header__nav .li-nav:hover.has--subnav .nav__category,.header__nav>li:hover.has--subnav .nav__category{width:100%}.header__nav .li-nav:hover.has--subnav .nav__category:after,.header__nav .li-nav:hover.has--subnav .nav__category:before,.header__nav>li:hover.has--subnav .nav__category:after,.header__nav>li:hover.has--subnav .nav__category:before{-webkit-transition-delay:.25s;transition-delay:.25s;opacity:1}}@media only screen and (min-width:1080px){.header__nav .li-nav:not(:last-child),.header__nav>li:not(:last-child){margin-right:23px;margin-left:23px}}@media only screen and (min-width:1280px){.header__nav .li-nav:not(:last-child),.header__nav>li:not(:last-child){margin-right:23px;margin-left:23px}}@media only screen and (min-width:1338px){.header__nav .li-nav:not(:last-child),.header__nav>li:not(:last-child){margin-right:23px;margin-left:23px}}.header__nav .li-nav>a,.header__nav>li>a{font-size:.875rem;line-height:1.5rem;padding:12px 0;color:#000;display:inline-block;max-width:100%;position:relative;z-index:61;white-space:normal}@media only screen and (min-width:1050px){.header__nav .li-nav>a,.header__nav>li>a{padding:8px 0 0;font-weight:700}}.header__nav .li-nav>a:after,.header__nav 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                    <h1>Programming with Values in Clojure</h1>

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                        <p>Alan Dipert discusses the benefits of functional programming in Clojure, suggesting using pure functions to process values and sometimes explicit procedures for needed side effects.</p>
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                        <p>Alan Dipert has contributed to Clojure, ClojureScript, and several Clojure projects including Leiningen and Incanter. As a consultant with Clojure/core, he has also worked on a variety of commercial Clojure projects. He lives in Durham, North Carolina, where he helps run Splat Space, the local hackerspace. His favorite computer is the Arduino microcontroller, for which he implemented a Lisp.</p>
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                        <p>Clojure/West is a new conference bringing the Clojure community together to discuss techniques, tools, and the state of the Clojure ecosystem March 16-17th for three tracks of sessions.  Prior to the conference, register for three days of training by the Clojure experts.</p>
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                        <p class="date">Jun 11, 2012</p>
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