From 64c817ef81d4fe95dd58002d78ae9ec5e020db08 Mon Sep 17 00:00:00 2001
From: Angelos Chalaris <chalarangelo@gmail.com>
Date: Wed, 24 Jan 2018 14:22:43 +0200
Subject: [PATCH] Add bindKey

---
 snippets/bindKey.md | 24 ++++++++++++++++++++++++
 tag_database        |  1 +
 2 files changed, 25 insertions(+)
 create mode 100644 snippets/bindKey.md

diff --git a/snippets/bindKey.md b/snippets/bindKey.md
new file mode 100644
index 000000000..2ff80f861
--- /dev/null
+++ b/snippets/bindKey.md
@@ -0,0 +1,24 @@
+### bindKey
+
+Creates a function that invokes the method at a given key of an object, optionally adding any additional supplied parameters to the beginning of the arguments.
+
+Return a `function` that uses `Function.apply()` to bind `context[fn]` to `context`.
+Use `Array.concat()` to prepend any additional supplied parameters to the arguments.
+
+```js
+const bindKey = (context, fn, ...args) =>
+  function() {
+    return context[fn].apply(context, args.concat(...arguments));
+  };
+```
+
+```js
+const freddy = {
+  user: 'fred',
+  greet: function(greeting, punctuation) {
+    return greeting + ' ' + this.user + punctuation;
+  },
+};
+const freddyBound = bindKey(freddy, 'greet');
+console.log(freddyBound('hi', '!')); // 'hi fred!'
+```
diff --git a/tag_database b/tag_database
index fd216c710..46617cd16 100644
--- a/tag_database
+++ b/tag_database
@@ -5,6 +5,7 @@ atob:node,string,utility
 average:math,array
 averageBy:math,array,function
 bind:function,object
+bindKey:function,object
 bottomVisible:browser
 btoa:node,string,utility
 byteSize:string