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JavaScript

JS: Detect bottom of page

$(window).scroll(function() {
    if (atBottomOfPage())
    {
        console.log('bottom here!')
    }
});

function atBottomOfPage()
{
    var distanceToViewportTop = (
        $(document).height() - $(window).height()
    );
    var viewPortTop = $(document).scrollTop();
    if (viewPortTop === 0) return false;
    return (viewPortTop - distanceToViewportTop === 0);
};
https://snipt.net/embed/3e407bb52bd36e358ac92cb2f905745f/
/raw/3e407bb52bd36e358ac92cb2f905745f/
3e407bb52bd36e358ac92cb2f905745f
js
JavaScript
16
2019-07-15T20:04:22
True
False
False
/api/public/snipt/116944/
js-detect-bottom-of-page
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a> <a href="#L-15">15</a> <a href="#L-16">16</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="nx">$</span><span class="p">(</span><span class="nb">window</span><span class="p">).</span><span class="nx">scroll</span><span class="p">(</span><span class="kd">function</span><span class="p">()</span> <span class="p">{</span> </span><span id="L-2"><a name="L-2"></a> <span class="k">if</span> <span class="p">(</span><span class="nx">atBottomOfPage</span><span class="p">())</span> </span><span id="L-3"><a name="L-3"></a> <span class="p">{</span> </span><span id="L-4"><a name="L-4"></a> <span class="nx">console</span><span class="p">.</span><span class="nx">log</span><span class="p">(</span><span class="s1">&#39;bottom here!&#39;</span><span class="p">)</span> </span><span id="L-5"><a name="L-5"></a> <span class="p">}</span> </span><span id="L-6"><a name="L-6"></a><span class="p">});</span> </span><span id="L-7"><a name="L-7"></a> </span><span id="L-8"><a name="L-8"></a><span class="kd">function</span> <span class="nx">atBottomOfPage</span><span class="p">()</span> </span><span id="L-9"><a name="L-9"></a><span class="p">{</span> </span><span id="L-10"><a name="L-10"></a> <span class="kd">var</span> <span class="nx">distanceToViewportTop</span> <span class="o">=</span> <span class="p">(</span> </span><span id="L-11"><a name="L-11"></a> <span class="nx">$</span><span class="p">(</span><span class="nb">document</span><span class="p">).</span><span class="nx">height</span><span class="p">()</span> <span class="o">-</span> <span class="nx">$</span><span class="p">(</span><span class="nb">window</span><span class="p">).</span><span class="nx">height</span><span class="p">()</span> </span><span id="L-12"><a name="L-12"></a> <span class="p">);</span> </span><span id="L-13"><a name="L-13"></a> <span class="kd">var</span> <span class="nx">viewPortTop</span> <span class="o">=</span> <span class="nx">$</span><span class="p">(</span><span class="nb">document</span><span class="p">).</span><span class="nx">scrollTop</span><span class="p">();</span> </span><span id="L-14"><a name="L-14"></a> <span class="k">if</span> <span class="p">(</span><span class="nx">viewPortTop</span> <span class="o">===</span> <span class="mi">0</span><span class="p">)</span> <span class="k">return</span> <span class="kc">false</span><span class="p">;</span> </span><span id="L-15"><a name="L-15"></a> <span class="k">return</span> <span class="p">(</span><span class="nx">viewPortTop</span> <span class="o">-</span> <span class="nx">distanceToViewportTop</span> <span class="o">===</span> <span class="mi">0</span><span class="p">);</span> </span><span id="L-16"><a name="L-16"></a><span class="p">};</span> </span></pre></div> </td></tr></table>
bottom, javascript, jquery, scroll