From 1a56db151fe6c8bcc5df81ab5c48e6cdf66f81ae Mon Sep 17 00:00:00 2001
From: Matthew Dahl <mdahl@ciena.com>
Date: Fri, 5 Aug 2016 19:19:31 -0700
Subject: [PATCH 1/2] Fix bugs with lodash 4

---
 lib/nesting-graph.js | 2 +-
 lib/rank/util.js     | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/nesting-graph.js b/lib/nesting-graph.js
index 2563d93a..5a5269c7 100644
--- a/lib/nesting-graph.js
+++ b/lib/nesting-graph.js
@@ -105,7 +105,7 @@ export function cleanup (g) {
 export function run (g) {
   var root = addDummyNode(g, 'root', {}, '_root')
   var depths = treeDepths(g)
-  var height = _.max(depths) - 1
+  var height = _.max(_.values(depths)) - 1 // Note: depths is an Object not an array
   var nodeSep = 2 * height + 1
 
   g.graph().nestingRoot = root
diff --git a/lib/rank/util.js b/lib/rank/util.js
index 0b345bc4..bc40ef3a 100644
--- a/lib/rank/util.js
+++ b/lib/rank/util.js
@@ -35,7 +35,11 @@ export function longestPath (g) {
       return dfs(e.w) - g.edge(e).minlen
     }))
 
-    if (rank === Number.POSITIVE_INFINITY) {
+    if (
+      rank === Number.POSITIVE_INFINITY || // return value of _.map([]) for Lodash 3
+      rank === undefined || // return value of _.map([]) for Lodash 4
+      rank === null // return value of _.map([null])
+    ) {
       rank = 0
     }
 

From d101bf6759952f64c6d023730b1a96f0cf169fbc Mon Sep 17 00:00:00 2001
From: Matthew Dahl <mdahl@ciena.com>
Date: Fri, 5 Aug 2016 19:20:23 -0700
Subject: [PATCH 2/2] Bump version

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index b34c64d1..bf28c31a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dagre",
-  "version": "0.7.5-pre.2",
+  "version": "0.7.5-pre.3",
   "description": "Graph layout for JavaScript",
   "scripts": {
     "lint": "npm run lint-js",