diff --git a/Makefile b/Makefile
index c88d095c1..5d0077846 100644
--- a/Makefile
+++ b/Makefile
@@ -64,7 +64,7 @@ iD.js: Makefile
 
 %.min.js: %.js Makefile
 	@rm -f $@
-	$(JS_COMPILER) $< -o $@
+	$(JS_COMPILER) $< -c -m -o $@
 
 clean:
 	rm -f iD*.js
diff --git a/js/id/oauth.js b/js/id/oauth.js
index 9ed8eaa31..632dc60cd 100644
--- a/js/id/oauth.js
+++ b/js/id/oauth.js
@@ -4,8 +4,6 @@ iD.OAuth = function(context) {
         keys,
         oauth = {};
 
-    function keyclean(x) { return x.replace(/\W/g, ''); }
-
     function timenonce(o) {
         o.oauth_timestamp = ohauth.timestamp();
         o.oauth_nonce = ohauth.nonce();
diff --git a/js/id/svg/labels.js b/js/id/svg/labels.js
index 507f4cbdd..0636c49d6 100644
--- a/js/id/svg/labels.js
+++ b/js/id/svg/labels.js
@@ -80,9 +80,9 @@ iD.svg.Labels = function(projection) {
             .data(entities, iD.Entity.key)
             .attr({
                 'startOffset': '50%',
-                'xlink:href': function(d, i) { return '#halo-' + d.id; }
+                'xlink:href': function(d) { return '#halo-' + d.id; }
             })
-            .text(function(d, i) { return name(d); });
+            .text(function(d) { return name(d); });
 
         texts.exit().remove();
 
@@ -97,7 +97,7 @@ iD.svg.Labels = function(projection) {
         halos.enter()
             .append('path')
             .style('stroke-width', get(labels, 'font-size'))
-            .attr('id', function(d, i) { return 'halo-' + d.id; })
+            .attr('id', function(d) { return 'halo-' + d.id; })
             .attr('class', classes);
 
         halos.attr('d', get(labels, 'lineString'));
diff --git a/js/id/svg/lines.js b/js/id/svg/lines.js
index 59fec46e1..a94ad3a25 100644
--- a/js/id/svg/lines.js
+++ b/js/id/svg/lines.js
@@ -127,7 +127,7 @@ iD.svg.Lines = function(projection) {
 
         text.selectAll('.textpath')
             .filter(filter)
-            .attr('xlink:href', function(d, i) { return '#shadow-' + d.id; })
+            .attr('xlink:href', function(d) { return '#shadow-' + d.id; })
             .text(function(d) {
                 // adding longer text than necessary, since overflow is hidden
                 return (new Array(Math.floor(lengths[d.id] * 1.1))).join(arrowtext);
diff --git a/js/id/svg/member_classes.js b/js/id/svg/member_classes.js
index 713cc898e..1b4adf673 100644
--- a/js/id/svg/member_classes.js
+++ b/js/id/svg/member_classes.js
@@ -2,7 +2,7 @@ iD.svg.MemberClasses = function(graph) {
     var tagClassRe = /^member-?/;
 
     return function memberClassesSelection(selection) {
-        selection.each(function memberClassesEach(d, i) {
+        selection.each(function memberClassesEach(d) {
             var classes, value = this.className;
 
             if (value.baseVal !== undefined) value = value.baseVal;
diff --git a/js/id/ui/key_reference.js b/js/id/ui/key_reference.js
index 1c1515150..c5e2b206f 100644
--- a/js/id/ui/key_reference.js
+++ b/js/id/ui/key_reference.js
@@ -27,7 +27,7 @@ iD.ui.keyReference = function(selection) {
             .append('tr');
 
         var cols = rows.selectAll('td')
-            .data(function(d, i) {
+            .data(function(d) {
                 return [d.value, d.description || "", d.count];
             })
             .enter()
diff --git a/js/id/ui/lasso.js b/js/id/ui/lasso.js
index 3cfe02ac1..cbf6fe412 100644
--- a/js/id/ui/lasso.js
+++ b/js/id/ui/lasso.js
@@ -1,7 +1,6 @@
 iD.ui.Lasso = function() {
 
-    var center, box,
-        group,
+    var box, group,
         a = [0, 0],
         b = [0, 0];
 
diff --git a/js/id/ui/success.js b/js/id/ui/success.js
index 17a577fb3..4d4799ffd 100644
--- a/js/id/ui/success.js
+++ b/js/id/ui/success.js
@@ -19,7 +19,7 @@ iD.ui.Success = function(connection) {
             connection.changesetUrl(changeset.id);
 
         header.append('a')
-            .attr('href', function(d) {
+            .attr('href', function() {
                 return connection.changesetUrl(changeset.id);
             })
             .attr('target', '_blank')
@@ -28,7 +28,7 @@ iD.ui.Success = function(connection) {
 
         header.append('a')
             .attr('target', '_blank')
-            .attr('href', function(d) {
+            .attr('href', function() {
                 return 'https://twitter.com/intent/tweet?source=webclient&text=' +
                     encodeURIComponent(message);
             })
diff --git a/js/id/ui/tageditor.js b/js/id/ui/tageditor.js
index cfd64bd4a..6e88cf6b5 100644
--- a/js/id/ui/tageditor.js
+++ b/js/id/ui/tageditor.js
@@ -89,12 +89,12 @@ iD.ui.TagEditor = function(context) {
 
         presetUI = iD.ui.preset(context)
             .entity(entity)
-            .on('change', function(tags) {
+            .on('change', function() {
                 event.changeTags();
             });
 
         tagList = iD.ui.Taglist(context)
-            .on('change', function(tags) {
+            .on('change', function() {
                 event.changeTags();
             });
 
@@ -120,7 +120,7 @@ iD.ui.TagEditor = function(context) {
         event.changeTags();
     }
 
-    function apply(entity) {
+    function apply() {
         event.changeTags();
         event.close();
     }