string.filter()
Filters a string to its elements for which the callback function returns true.
Introduced: 6.0.0.105
string.filter( closure=function )
Returns: String
| Argument | Description |
|---|---|
|
closure
function,
required
|
Closure or a function reference that will be called for each of the iteration. Alias: function, callback, udf |
Examples
letters = "abbcdB";
callbackFunction = function(input){return input=="b";}
<span class="nv">result</span> <span class="o">=</span> <span class="nf">letters.filter</span><span class="p">(</span><span class="nv">callbackFunction</span><span class="p">);</span>
<span class="nf">writeDump</span><span class="p">(</span><span class="nv">result</span><span class="p">);</span>
<span class="nv">result1</span> <span class="o">=</span> <span class="s2">"bob"</span><span class="p">.</span><span class="nf">filter</span><span class="p">(</span><span class="nv">callbackFunction</span><span class="p">);</span>
<span class="nf">writeDump</span><span class="p">(</span><span class="nv">result1</span><span class="p">);</span>