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JavaScript

Dynamically loading source js or css files

function loadjscssfile(filename, filetype){
 if (filetype=="js"){ //if filename is a external JavaScript file
  var fileref=document.createElement('script')
  fileref.setAttribute("type","text/javascript")
  fileref.setAttribute("src", filename)
 }
 else if (filetype=="css"){ //if filename is an external CSS file
  var fileref=document.createElement("link")
  fileref.setAttribute("rel", "stylesheet")
  fileref.setAttribute("type", "text/css")
  fileref.setAttribute("href", filename)
 }
 if (typeof fileref!="undefined")
  document.getElementsByTagName("head")[0].appendChild(fileref)
}
https://snipt.net/embed/b74f8215831abbdef90dea1a287be7b3/
/raw/b74f8215831abbdef90dea1a287be7b3/
b74f8215831abbdef90dea1a287be7b3
js
JavaScript
16
2019-07-23T14:40:17
True
False
False
/api/public/snipt/19202/
dynamically-loading-source-js-or-css-files
<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></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="kd">function</span> <span class="nx">loadjscssfile</span><span class="p">(</span><span class="nx">filename</span><span class="p">,</span> <span class="nx">filetype</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">filetype</span><span class="o">==</span><span class="s2">&quot;js&quot;</span><span class="p">){</span> <span class="c1">//if filename is a external JavaScript file</span> </span><span id="L-3"><a name="L-3"></a> <span class="kd">var</span> <span class="nx">fileref</span><span class="o">=</span><span class="nb">document</span><span class="p">.</span><span class="nx">createElement</span><span class="p">(</span><span class="s1">&#39;script&#39;</span><span class="p">)</span> </span><span id="L-4"><a name="L-4"></a> <span class="nx">fileref</span><span class="p">.</span><span class="nx">setAttribute</span><span class="p">(</span><span class="s2">&quot;type&quot;</span><span class="p">,</span><span class="s2">&quot;text/javascript&quot;</span><span class="p">)</span> </span><span id="L-5"><a name="L-5"></a> <span class="nx">fileref</span><span class="p">.</span><span class="nx">setAttribute</span><span class="p">(</span><span class="s2">&quot;src&quot;</span><span class="p">,</span> <span class="nx">filename</span><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 class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nx">filetype</span><span class="o">==</span><span class="s2">&quot;css&quot;</span><span class="p">){</span> <span class="c1">//if filename is an external CSS file</span> </span><span id="L-8"><a name="L-8"></a> <span class="kd">var</span> <span class="nx">fileref</span><span class="o">=</span><span class="nb">document</span><span class="p">.</span><span class="nx">createElement</span><span class="p">(</span><span class="s2">&quot;link&quot;</span><span class="p">)</span> </span><span id="L-9"><a name="L-9"></a> <span class="nx">fileref</span><span class="p">.</span><span class="nx">setAttribute</span><span class="p">(</span><span class="s2">&quot;rel&quot;</span><span class="p">,</span> <span class="s2">&quot;stylesheet&quot;</span><span class="p">)</span> </span><span id="L-10"><a name="L-10"></a> <span class="nx">fileref</span><span class="p">.</span><span class="nx">setAttribute</span><span class="p">(</span><span class="s2">&quot;type&quot;</span><span class="p">,</span> <span class="s2">&quot;text/css&quot;</span><span class="p">)</span> </span><span id="L-11"><a name="L-11"></a> <span class="nx">fileref</span><span class="p">.</span><span class="nx">setAttribute</span><span class="p">(</span><span class="s2">&quot;href&quot;</span><span class="p">,</span> <span class="nx">filename</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="k">if</span> <span class="p">(</span><span class="k">typeof</span> <span class="nx">fileref</span><span class="o">!=</span><span class="s2">&quot;undefined&quot;</span><span class="p">)</span> </span><span id="L-14"><a name="L-14"></a> <span class="nb">document</span><span class="p">.</span><span class="nx">getElementsByTagName</span><span class="p">(</span><span class="s2">&quot;head&quot;</span><span class="p">)[</span><span class="mi">0</span><span class="p">].</span><span class="nx">appendChild</span><span class="p">(</span><span class="nx">fileref</span><span class="p">)</span> </span><span id="L-15"><a name="L-15"></a><span class="p">}</span> </span></pre></div> </td></tr></table>
css, dom, dynamic, javascript, js