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JavaScript

Basic XMLHttprequest (code from http://www.sitepoint.com/article/take-command-ajax)

function makeHttpRequest(url){

   var http_request = false;

   if (window.XMLHttpRequest) { // Mozilla, Safari,...
   
       http_request = new XMLHttpRequest();
	   
       if (http_request.overrideMimeType){
	   
           http_request.overrideMimeType('text/xml');
		   
       }
	   
   } 
   else if (window.ActiveXObject) { // IE
   
       try{
	   
           http_request = new ActiveXObject("Msxml2.XMLHTTP");
		   
       } 
	   catch(e){
	   
           try{
		   
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
			   
           } 
		   catch (e) {}
       }
	   
   }

   if (!http_request) {
   
       alert('Unfortunatelly you browser doesn\'t support this feature.');
	   
       return false;
	   
   }
   http_request.onreadystatechange = function() {
   
       if (http_request.readyState == 4){
	   
           if (http_request.status == 200){

				alert(http_request.responseText);

           } 
		   else{
		   
               alert('There was a problem with the request.(Code: ' + http_request.status + ')');
			   
           }
		   
       }
	   
   };
   
   http_request.open('GET', url, true);
   http_request.send(null);
}
https://snipt.net/embed/dc6059b67a247ba5e04dba8a79de6e73/
/raw/dc6059b67a247ba5e04dba8a79de6e73/
dc6059b67a247ba5e04dba8a79de6e73
js
JavaScript
64
2019-07-19T10:05:54
True
False
False
/api/public/snipt/5051/
basic-xmlhttprequest-code-from-httpwwwsitepointcomarticletake-command-ajax
<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> <a href="#L-17">17</a> <a href="#L-18">18</a> <a href="#L-19">19</a> <a href="#L-20">20</a> <a href="#L-21">21</a> <a href="#L-22">22</a> <a href="#L-23">23</a> <a href="#L-24">24</a> <a href="#L-25">25</a> <a href="#L-26">26</a> <a href="#L-27">27</a> <a href="#L-28">28</a> <a href="#L-29">29</a> <a href="#L-30">30</a> <a href="#L-31">31</a> <a href="#L-32">32</a> <a href="#L-33">33</a> <a href="#L-34">34</a> <a href="#L-35">35</a> <a href="#L-36">36</a> <a href="#L-37">37</a> <a href="#L-38">38</a> <a href="#L-39">39</a> <a href="#L-40">40</a> <a href="#L-41">41</a> <a href="#L-42">42</a> <a href="#L-43">43</a> <a href="#L-44">44</a> <a href="#L-45">45</a> <a href="#L-46">46</a> <a href="#L-47">47</a> <a href="#L-48">48</a> <a href="#L-49">49</a> <a href="#L-50">50</a> <a href="#L-51">51</a> <a href="#L-52">52</a> <a href="#L-53">53</a> <a href="#L-54">54</a> <a href="#L-55">55</a> <a href="#L-56">56</a> <a href="#L-57">57</a> <a href="#L-58">58</a> <a href="#L-59">59</a> <a href="#L-60">60</a> <a href="#L-61">61</a> <a href="#L-62">62</a> <a href="#L-63">63</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">makeHttpRequest</span><span class="p">(</span><span class="nx">url</span><span class="p">){</span> </span><span id="L-2"><a name="L-2"></a> </span><span id="L-3"><a name="L-3"></a> <span class="kd">var</span> <span class="nx">http_request</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span> </span><span id="L-4"><a name="L-4"></a> </span><span id="L-5"><a name="L-5"></a> <span class="k">if</span> <span class="p">(</span><span class="nb">window</span><span class="p">.</span><span class="nx">XMLHttpRequest</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// Mozilla, Safari,...</span> </span><span id="L-6"><a name="L-6"></a> </span><span id="L-7"><a name="L-7"></a> <span class="nx">http_request</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">XMLHttpRequest</span><span class="p">();</span> </span><span id="L-8"><a name="L-8"></a> </span><span id="L-9"><a name="L-9"></a> <span class="k">if</span> <span class="p">(</span><span class="nx">http_request</span><span class="p">.</span><span class="nx">overrideMimeType</span><span class="p">){</span> </span><span id="L-10"><a name="L-10"></a> </span><span id="L-11"><a name="L-11"></a> <span class="nx">http_request</span><span class="p">.</span><span class="nx">overrideMimeType</span><span class="p">(</span><span class="s1">&#39;text/xml&#39;</span><span class="p">);</span> </span><span id="L-12"><a name="L-12"></a> </span><span id="L-13"><a name="L-13"></a> <span class="p">}</span> </span><span id="L-14"><a name="L-14"></a> </span><span id="L-15"><a name="L-15"></a> <span class="p">}</span> </span><span id="L-16"><a name="L-16"></a> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nb">window</span><span class="p">.</span><span class="nx">ActiveXObject</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// IE</span> </span><span id="L-17"><a name="L-17"></a> </span><span id="L-18"><a name="L-18"></a> <span class="k">try</span><span class="p">{</span> </span><span id="L-19"><a name="L-19"></a> </span><span id="L-20"><a name="L-20"></a> <span class="nx">http_request</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">ActiveXObject</span><span class="p">(</span><span class="s2">&quot;Msxml2.XMLHTTP&quot;</span><span class="p">);</span> </span><span id="L-21"><a name="L-21"></a> </span><span id="L-22"><a name="L-22"></a> <span class="p">}</span> </span><span id="L-23"><a name="L-23"></a> <span class="k">catch</span><span class="p">(</span><span class="nx">e</span><span class="p">){</span> </span><span id="L-24"><a name="L-24"></a> </span><span id="L-25"><a name="L-25"></a> <span class="k">try</span><span class="p">{</span> </span><span id="L-26"><a name="L-26"></a> </span><span id="L-27"><a name="L-27"></a> <span class="nx">http_request</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">ActiveXObject</span><span class="p">(</span><span class="s2">&quot;Microsoft.XMLHTTP&quot;</span><span class="p">);</span> </span><span id="L-28"><a name="L-28"></a> </span><span id="L-29"><a name="L-29"></a> <span class="p">}</span> </span><span id="L-30"><a name="L-30"></a> <span class="k">catch</span> <span class="p">(</span><span class="nx">e</span><span class="p">)</span> <span class="p">{}</span> </span><span id="L-31"><a name="L-31"></a> <span class="p">}</span> </span><span id="L-32"><a name="L-32"></a> </span><span id="L-33"><a name="L-33"></a> <span class="p">}</span> </span><span id="L-34"><a name="L-34"></a> </span><span id="L-35"><a name="L-35"></a> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">http_request</span><span class="p">)</span> <span class="p">{</span> </span><span id="L-36"><a name="L-36"></a> </span><span id="L-37"><a name="L-37"></a> <span class="nx">alert</span><span class="p">(</span><span class="s1">&#39;Unfortunatelly you browser doesn\&#39;t support this feature.&#39;</span><span class="p">);</span> </span><span id="L-38"><a name="L-38"></a> </span><span id="L-39"><a name="L-39"></a> <span class="k">return</span> <span class="kc">false</span><span class="p">;</span> </span><span id="L-40"><a name="L-40"></a> </span><span id="L-41"><a name="L-41"></a> <span class="p">}</span> </span><span id="L-42"><a name="L-42"></a> <span class="nx">http_request</span><span class="p">.</span><span class="nx">onreadystatechange</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span> </span><span id="L-43"><a name="L-43"></a> </span><span id="L-44"><a name="L-44"></a> <span class="k">if</span> <span class="p">(</span><span class="nx">http_request</span><span class="p">.</span><span class="nx">readyState</span> <span class="o">==</span> <span class="mi">4</span><span class="p">){</span> </span><span id="L-45"><a name="L-45"></a> </span><span id="L-46"><a name="L-46"></a> <span class="k">if</span> <span class="p">(</span><span class="nx">http_request</span><span class="p">.</span><span class="nx">status</span> <span class="o">==</span> <span class="mi">200</span><span class="p">){</span> </span><span id="L-47"><a name="L-47"></a> </span><span id="L-48"><a name="L-48"></a> <span class="nx">alert</span><span class="p">(</span><span class="nx">http_request</span><span class="p">.</span><span class="nx">responseText</span><span class="p">);</span> </span><span id="L-49"><a name="L-49"></a> </span><span id="L-50"><a name="L-50"></a> <span class="p">}</span> </span><span id="L-51"><a name="L-51"></a> <span class="k">else</span><span class="p">{</span> </span><span id="L-52"><a name="L-52"></a> </span><span id="L-53"><a name="L-53"></a> <span class="nx">alert</span><span class="p">(</span><span class="s1">&#39;There was a problem with the request.(Code: &#39;</span> <span class="o">+</span> <span class="nx">http_request</span><span class="p">.</span><span class="nx">status</span> <span class="o">+</span> <span class="s1">&#39;)&#39;</span><span class="p">);</span> </span><span id="L-54"><a name="L-54"></a> </span><span id="L-55"><a name="L-55"></a> <span class="p">}</span> </span><span id="L-56"><a name="L-56"></a> </span><span id="L-57"><a name="L-57"></a> <span class="p">}</span> </span><span id="L-58"><a name="L-58"></a> </span><span id="L-59"><a name="L-59"></a> <span class="p">};</span> </span><span id="L-60"><a name="L-60"></a> </span><span id="L-61"><a name="L-61"></a> <span class="nx">http_request</span><span class="p">.</span><span class="nx">open</span><span class="p">(</span><span class="s1">&#39;GET&#39;</span><span class="p">,</span> <span class="nx">url</span><span class="p">,</span> <span class="kc">true</span><span class="p">);</span> </span><span id="L-62"><a name="L-62"></a> <span class="nx">http_request</span><span class="p">.</span><span class="nx">send</span><span class="p">(</span><span class="kc">null</span><span class="p">);</span> </span><span id="L-63"><a name="L-63"></a><span class="p">}</span> </span></pre></div> </td></tr></table>
xmlhttprequest