From 17e113dafb5a00ef762380f527ac1f9b70a057dc Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Sat, 6 Oct 2012 21:11:52 -0700
Subject: [PATCH] Update `_.map` to return an empty array when falsey values
 are passed.

Former-commit-id: 2f091fbeb140cbc0b8f3bd2df7a449a06239be0b
---
 build.js                 |  2 +-
 lodash.js                |  2 +-
 lodash.min.js            |  2 +-
 lodash.underscore.min.js | 32 ++++++++++++++++----------------
 4 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/build.js b/build.js
index 810b4e864..f7a38dd3d 100755
--- a/build.js
+++ b/build.js
@@ -1256,7 +1256,7 @@
         });
 
         if (isUnderscore) {
-          // remove compiled template cleanup from `_.template`
+          // remove "compiled template cleanup" from `_.template`
           source = source.replace(/(?:\s*\/\/.*)*\n *source *=.+?isEvaluating.+?reEmptyStringLeading[\s\S]+?\);/, '');
           source = removeVar(source, 'reEmptyStringLeading');
           source = removeVar(source, 'reEmptyStringMiddle');
diff --git a/lodash.js b/lodash.js
index bdf2c170c..35a2f458d 100644
--- a/lodash.js
+++ b/lodash.js
@@ -482,7 +482,7 @@
 
   /** Reusable iterator options for `invoke`, `map`, `pluck`, and `sortBy` */
   var mapIteratorOptions = {
-    'init': false,
+    'init': 'collection || []',
     'beforeLoop': {
       'array':  'result = Array(length)',
       'object': 'result = ' + (isKeysFast ? 'Array(length)' : '[]')
diff --git a/lodash.min.js b/lodash.min.js
index bcaee1192..699d25bca 100644
--- a/lodash.min.js
+++ b/lodash.min.js
@@ -17,7 +17,7 @@ global==global.global&&(e=global),exports),_=Array.prototype,D=Object.prototype,
 .split(" "),K=_.concat,Q=D.hasOwnProperty,G=_.push,Y=D.propertyIsEnumerable,Z=_.slice,et=D.toString,tt=W.test(tt=Z.bind)&&tt,nt=Math.floor,rt=W.test(rt=Object.getPrototypeOf)&&rt,it=W.test(it=Array.isArray)&&it,st=e.isFinite,ot=W.test(ot=Object.keys)&&ot,ut=Math.max,at=Math.min,ft=Math.random,lt="[object Arguments]",ct="[object Array]",ht="[object Boolean]",pt="[object Date]",dt="[object Number]",vt="[object Object]",mt="[object RegExp]",gt="[object String]",yt=e.clearTimeout,bt=e.setTimeout,wt,Et
 ,St,xt=n;(function(){function e(){this.x=1}var t={0:1,length:1},n=[];e.prototype={valueOf:1,y:1};for(var r in new e)n.push(r);for(r in arguments)xt=!r;wt=4>(n+"").length,St="x"!=n[0],Et=(n.splice.call(t,0,1),t[0])})(1);var Tt=!v(arguments),Nt="x"!=Z.call("x")[0],Ct="xx"!="x"[0]+Object("x")[0];try{var kt=("[object Object]",et.call(e.document||0)==vt)}catch(Lt){}var At=tt&&/\n|Opera/.test(tt+et.call(e.opera)),Ot=ot&&/^.+$|true/.test(ot+!!e.attachEvent),Mt=!At,_t={};_t[ht]=_t[pt]=_t["[object Function]"]=
 _t[dt]=_t[vt]=_t[mt]=i,_t[lt]=_t[ct]=_t[gt]=n;var Dt={};Dt[lt]=Dt["[object Function]"]=i,Dt[ct]=Dt[ht]=Dt[pt]=Dt[dt]=Dt[vt]=Dt[mt]=Dt[gt]=n;var Pt={"boolean":i,"function":n,object:n,number:i,string:i,"undefined":i,unknown:n},Ht={"\\":"\\","'":"'","\n":"n","\r":"r","	":"t","\u2028":"u2028","\u2029":"u2029"};s.templateSettings={escape:/<%-([\s\S]+?)%>/g,evaluate:/<%([\s\S]+?)%>/g,interpolate:/<%=([\s\S]+?)%>/g,variable:""};var Bt={a:"d,c,x",i:"d",p:"c=f(c,x)",h:"if(c(A,i,d)===false)return t"},jt={i
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+:"{}",p:"c=f(c,x)",h:"var p=c(A,i,d);(h.call(t,p)?t[p]++:t[p]=1)"},Ft={i:"true",h:"if(!c(A,i,d))return!t"},It={q:i,r:i,a:"m",i:"m",p:"for(var a=1,b=arguments.length;a<b;a++){if(j=arguments[a]){",h:"t[i]=A",e:"}}"},qt={i:"[]",h:"c(A,i,d)&&t.push(A)"},Rt={p:"c=f(c,x)"},Ut={h:{k:Bt.h}},zt={i:"d||[]",d:{b:"t=Array(k)",k:"t="+(Ot?"Array(k)":"[]")},h:{b:"t[i]=c(A,i,d)",k:"t"+(Ot?"[n]=":".push")+"(c(A,i,d))"}},Wt={q:i,a:"m,c,x",i:"{}",p:"var R=typeof c=='function';if(R)c=f(c,x);else var s=e.apply(E,arguments)"
 ,h:"if(R?!c(A,i,m):M(s,i)<0)t[i]=A"},Xt=l({a:"m",i:"{}",h:"t[A]=i"});Tt&&(v=function(e){return e?Q.call(e,"callee"):i});var Vt=it||function(e){return et.call(e)==ct};m(/x/)&&(m=function(e){return"[object Function]"==et.call(e)});var $t=rt?function(e){if(!e||"object"!=typeof e)return i;var t=e.valueOf,n="function"==typeof t&&(n=rt(t))&&rt(n);return n?e==n||rt(e)==n&&!v(e):g(e)}:g,Jt=l({a:"m",i:"[]",h:"t.push(i)"}),Kt={"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#x27;"},Qt=Xt(Kt),Gt=l(It,{
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 ,h:"if((dd=A)&&((P=Q(dd))||T(dd))){var K=false,gg=ee.length;while(gg--)if(K=ee[gg]==dd)break;if(K){t[i]=ff[gg]}else {ee.push(dd);ff.push(A=(A=t[i],P)?(Q(A)?A:[]):(T(A)?A:{}));t[i]=G(A,dd,I,ee,ff)}}else if(dd!=null)t[i]=dd"}),on=l(Wt),un=l({a:"m",i:"[]",h:"t"+(Ot?"[n]=":".push")+"([i,A])"}),an=l(Wt,{p:"if(typeof c!='function'){var p,s=e.apply(E,arguments),k=s.length;for(i=1;i<k;i++){p=s[i];if(p in m)t[p]=m[p]}}else {c=f(c,x)",h:"if(c(A,i,m))t[i]=A",e:"}"}),fn=l({a:"m",i:"[]",h:"t.push(A)"}),ln=l({
diff --git a/lodash.underscore.min.js b/lodash.underscore.min.js
index 1bd59f269..bf1fdef61 100644
--- a/lodash.underscore.min.js
+++ b/lodash.underscore.min.js
@@ -2,12 +2,12 @@
  Lo-Dash 0.8.1 lodash.com/license
  Underscore.js 1.4.2 underscorejs.org/LICENSE
 */
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