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<h1>Module <a href="type_Js.Obj.html">Js.Obj</a></h1>

<pre><span class="keyword">module</span> Obj: <code class="type"><a href="Js_obj.html">Js_obj</a></code></pre><div class="info module top">
                    <div class="not-examples">
                    Provide utilities for <a href="Js.html#TYPEt"><code class="code">Js.t</code></a><br>
 
                    </div>
                    
                    </div>

                  <hr width="100%">

<pre><span id="VALempty"><span class="keyword">val</span> empty</span> : <code class="type">unit -> < .. > <a href="Js.html#TYPEt">Js.t</a></code></pre><div class="info ">
                    <div class="not-examples">
                    <code class="code">empty ()</code> returns the empty object <code class="code">{}</code><br>
 
                    </div>
                    
                    </div>

                  
<pre><span id="VALassign"><span class="keyword">val</span> assign</span> : <code class="type">< .. > <a href="Js.html#TYPEt">Js.t</a> -> < .. > <a href="Js.html#TYPEt">Js.t</a> -> < .. > <a href="Js.html#TYPEt">Js.t</a></code></pre><div class="info ">
                    <div class="not-examples">
                    <code class="code">assign target source</code> copies properties from <code class="code">source</code> to <code class="code">target</code>
<p>

Properties in <code class="code">target</code> will be overwritten by properties in <code class="code">source</code> if they
have the same key.
<p>

<b>Returns</b> <code class="code">target</code><br>
<div class="tag"> <b>See also</b> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign">MDN</a><br>
 </div> 
                    </div>
                     <div class="examples">
                    <pre class="example"> <pre class="codepre"><code class="code">(* Copy an object *)

let obj = [%obj { a = 1 }]

let copy = Js.Object.assign (Js.Object.empty ()) obj

(* prints "{ a: 1 }" *)
let _ = Js.log copy
</code></pre>  </pre><pre class="example"> <pre class="codepre"><code class="code">(* Merge objects with same properties *)

let target = [%obj { a = 1; b = 1; }]
let source = [%obj { b = 2; }]

let obj = Js.Object.assign target source

(* prints "{ a: 1, b: 2 }" *)
let _ = Js.log obj

(* prints "{ a: 1, b: 2 }", target is modified *)
let _ = Js.log target
</code></pre>  </pre>
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<pre><span id="VALkeys"><span class="keyword">val</span> keys</span> : <code class="type">'a <a href="Js.html#TYPEt">Js.t</a> -> string array</code></pre><div class="info ">
                    <div class="not-examples">
                    <code class="code">keys obj</code> returns an array of the keys of <code class="code">obj</code>'s own enumerable properties<br>
<div class="tag"> <b>See also</b> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys">MDN</a><br>
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