I&#39;ll explain by example:

Elvis Operator (?: )

&gt; The &quot;Elvis operator&quot; is a shortening
&gt; of Java&#39;s ternary operator. One
&gt; instance of where this is handy is for
&gt; returning a &#39;sensible default&#39; value
&gt; if an expression resolves to false or
&gt; null. A simple example might look like
&gt; this:

    def gender = user.male ? &quot;male&quot; : &quot;female&quot;  //traditional ternary operator usage
    
    def displayName = user.name ?: &quot;Anonymous&quot;  //more compact Elvis operator

&gt; Safe Navigation Operator (?.)
&gt; 
&gt; The Safe Navigation operator is used
&gt; to avoid a NullPointerException.
&gt; Typically when you have a reference to
&gt; an object you might need to verify
&gt; that it is not null before accessing
&gt; methods or properties of the object.
&gt; To avoid this, the safe navigation
&gt; operator will simply return null
&gt; instead of throwing an exception, like
&gt; so:

    def user = User.find( &quot;admin&quot; )           //this might be null if &#39;admin&#39; does not exist
    def streetName = user?.address?.street    //streetName will be null if user or user.address is null - no NPE thrown


All Safe Navigation-Operator Solutions on Gang of Coders

Total of 1 Safe Navigation-Operator Solutions

Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?