(public).sospep.subjects ~ view article ~ lookup-index-of-object-in-array-of-objects

<h1 style="text-align: center;">lookup the index of an object</h1>
<h2>[WHAT]</h2>
<ol>
<li>]&nbsp;a javascript function to&nbsp;find any&nbsp;object in an array of objects, using any element in the</li>
</ol>
<h2>[WHY]</h2>
<ol>
<li>]&nbsp;lookup the index of a particular element in an array of javascript objects</li>
</ol>
<h2>[WHERE]</h2>
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<li><strong>] READ THE FULL ARTICLE</strong></li>
<ol>
<li>] <a href="http://debugmode.net/2013/02/19/how-to-find-index-of-an-item-in-javascript-object-array/" target="_blank">http://debugmode.net/2013/02/19/how-to-find-index-of-an-item-in-javascript-object-array/</a>&nbsp;</li>
</ol>
<li>]</li>
</ol>
<h2>[WHEN]</h2>
<ol>
<li>] project-4800-pass - IN routes/index - selections</li>
</ol>
<h2>[EXAMPLE]</h2>
<ol>
<li>]</li>
</ol>
<h2>[HOW-TO]</h2>
<ol>
<li><strong>] define function</strong></li>
<li>
<pre style="background: white; color: black; font-family: Consolas; font-size: 10pt;"> <span style="color: #4f76ac;">function</span> findIndexByKeyValue<span style="color: #1e7c70;">(</span>searchDrivers<span style="color: #1e7c70;">,</span> key<span style="color: #1e7c70;">,</span> valuetosearch<span style="color: #1e7c70;">)</span> <span style="color: #1e7c70;">{</span>
        <span style="color: #4f76ac;">for</span> <span style="color: #1e7c70;">(</span><span style="color: #4f76ac;">var</span> i <span style="color: #1e7c70;">=</span> <span style="color: #9b5f9b;">0</span><span style="color: #1e7c70;">;</span> i <span style="color: #1e7c70;">&lt;</span> searchDrivers.length<span style="color: #1e7c70;">;</span> i<span style="color: #1e7c70;">++)</span> <span style="color: #1e7c70;">{</span>
            <span style="color: #4f76ac;">if</span> <span style="color: #1e7c70;">(</span>searchDrivers<span style="color: #1e7c70;">[</span>i<span style="color: #1e7c70;">][</span>key<span style="color: #1e7c70;">]</span> <span style="color: #1e7c70;">==</span> valuetosearch<span style="color: #1e7c70;">)</span> <span style="color: #1e7c70;">{</span>
                <span style="color: #4f76ac;">return</span> i<span style="color: #1e7c70;">;</span>
            <span style="color: #1e7c70;">}</span>
        <span style="color: #1e7c70;">}</span>
        <span style="color: #4f76ac;">return</span> <span style="color: #823125;">"not found"</span><span style="color: #1e7c70;">;</span>
    <span style="color: #1e7c70;">}</span></pre>
</li>
<li><strong>] call function</strong></li>
<ol>
<li>
<pre style="background: white; color: black; font-family: Consolas; font-size: 10pt;">var driverIndex = findIndexByKeyValue<span style="color: #1e7c70;">(</span>drivers<span style="color: #1e7c70;">,</span><span style="color: #823125;">"id"</span><span style="color: #1e7c70;">,</span>"48"<span style="color: #1e7c70;">);</span>
</pre>
</li>
</ol></ol>
<h2>[REFERENCE]</h2>
<ol>
<li>]&nbsp;js indexOf arrary,</li>
<li>] js indexOf string</li>
</ol>
<h1 style="text-align: center;">&nbsp;</h1>

~ view article ~ Chapter] ch-024-how-to FROM [ Book] language-javascript IN [ libraries] technology-developer-www