I am trying to get two separate services to monitor a platform but can only get one or the other to work at one time. I user a .BAT to hit the service and they seem to be connecting and working. But the problem occurs when i try to dimply the returned response. I have been working forever and still cannot get it. Looked through Stack for any ideas but couldn't find anything.
So the first thing were doing is stating the JS:
<script type="text/javascript">
<!--
function initPing() {
/* called from Body onLoad above */
Ping();
var AckCheck = window.setInterval(function(){Ping()},10000);
}
function Ping() {
xmlhttp=new XMLHttpRequest();
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById('IPAWS_PING_PROD').innerHTML = xmlhttp.responseText + document.getElementById('IPAWS_PING_PROD').innerHTML;
}
}
xmlhttp.open("GET","../ipaws/ping_prod.cfm? COGID=#session.prod_cog_id#&account_id=#session.account_id#",true);
xmlhttp.send();
}
// -->
<!--
function initPing2() {
/* called from Body onLoad above */
Ping2();
var AckCheck2 = window.setInterval(function(){Ping2()},10000);
}
function Ping() {
xmlhttp2=new XMLHttpRequest();
xmlhttp2.onreadystatechange=function()
{
if (xmlhttp2.readyState==4 && xmlhttp2.status==200)
{
document.getElementById('IPAWS_PING_TEST').innerHTML = xmlhttp2.responseText + document.getElementById('IPAWS_PING_TEST').innerHTML;
}
}
xmlhttp2.open("GET","../ipaws/ping_test.cfm? COGID=#session.test_cog_id#&account_id=#session.account_id#",true);
xmlhttp2.send();
}
// -->
</script>
And here is how we call the functions:
<div id="IPAWS_PING_TEST" style="width:19px;height:20px;overflow:hidden;float:left;text-align:left;font-size:16px;font-weight:bold;"></div>
<div id="IPAWS_PING_TEST" style="width:19px;height:20px;overflow:hidden;float:left;text-align:left;font-size:16px;font-weight:bold;"></div>
So here is an example of the pinging page:
<cfparam name="URL.COGID" default="">
<cfexecute name="C:\IPAWS\_ack2.bat"
arguments="#URL.COGID#" timeout="30"
errorVariable="errout2" variable="response2"/>
<cfoutput>
<CFIF errout2 neq "">
<!---
<b style="color:red;" title="ERROR (RETRYING) #timeformat(now(),'h:mm:ss tt')#">•</b>
--->
<cfelseif response2 contains "PONG">
<b style="color:##00ff00;" title="#URL.COGID# CONNECTED: #timeformat(now(),'h:mm:ss tt')#"><!--- 〈•〉--->
<img src="connected2.png" width="18" alt="Connected">
</b>
<cfelse>
<b style="color:##ff9933;" title="RETRYING: #timeformat(now(),'h:mm:ss tt')#">〈•〉</b>
</cfif></cfoutput>
</script>
We're getting successful responses ("PONG") but just cannot display them both at the same time. Any idea? I wish i was more proficient at JS.
Thanks!
Edit
I decided to just try to simplify everything and use the following code:
<cfhttp url="new.wensnetwork.com/ipaws/…" method="get" result="cfhttp">
<div id="IPAWS_PING_TEST" style="width:19px;height:20px;overflow:hidden;float:left;text-align:left;font-size:16px;font-weight:bold;">#cfhttp.filecontent#</div>
I want home.html to load in <div id="content">.
<div id="topBar"> HOME </div>
<div id ="content"> </div>
<script>
function load_home(){
document.getElementById("content").innerHTML='<object type="type/html" data="home.html" ></object>';
}
</script>
This works fine when I use Firefox. When I use Google Chrome, it asks for plug-in. How do I get it working in Google Chrome?
I finally found the answer to my problem. The solution is
function load_home() {
document.getElementById("content").innerHTML='<object type="text/html" data="home.html" ></object>';
}
Fetch API
function load_home (e) {
(e || window.event).preventDefault();
fetch("http://www.yoursite.com/home.html" /*, options */)
.then((response) => response.text())
.then((html) => {
document.getElementById("content").innerHTML = html;
})
.catch((error) => {
console.warn(error);
});
}
XHR API
function load_home (e) {
(e || window.event).preventDefault();
var con = document.getElementById('content')
, xhr = new XMLHttpRequest();
xhr.onreadystatechange = function (e) {
if (xhr.readyState == 4 && xhr.status == 200) {
con.innerHTML = xhr.responseText;
}
}
xhr.open("GET", "http://www.yoursite.com/home.html", true);
xhr.setRequestHeader('Content-type', 'text/html');
xhr.send();
}
based on your constraints you should use ajax and make sure that your javascript is loaded before the markup that calls the load_home() function
Reference - davidwalsh
MDN - Using Fetch
JSFIDDLE demo
You can use the jQuery load function:
<div id="topBar">
HOME
</div>
<div id ="content">
</div>
<script>
$(document).ready( function() {
$("#load_home").on("click", function() {
$("#content").load("content.html");
});
});
</script>
Sorry. Edited for the on click instead of on load.
Fetching HTML the modern Javascript way
This approach makes use of modern Javascript features like async/await and the fetch API. It downloads HTML as text and then feeds it to the innerHTML of your container element.
/**
* #param {String} url - address for the HTML to fetch
* #return {String} the resulting HTML string fragment
*/
async function fetchHtmlAsText(url) {
return await (await fetch(url)).text();
}
// this is your `load_home() function`
async function loadHome() {
const contentDiv = document.getElementById("content");
contentDiv.innerHTML = await fetchHtmlAsText("home.html");
}
The await (await fetch(url)).text() may seem a bit tricky, but it's easy to explain. It has two asynchronous steps and you could rewrite that function like this:
async function fetchHtmlAsText(url) {
const response = await fetch(url);
return await response.text();
}
See the fetch API documentation for more details.
I saw this and thought it looked quite nice so I ran some tests on it.
It may seem like a clean approach, but in terms of performance it is lagging by 50% compared by the time it took to load a page with jQuery load function or using the vanilla javascript approach of XMLHttpRequest which were roughly similar to each other.
I imagine this is because under the hood it gets the page in the exact same fashion but it also has to deal with constructing a whole new HTMLElement object as well.
In summary I suggest using jQuery. The syntax is about as easy to use as it can be and it has a nicely structured call back for you to use. It is also relatively fast. The vanilla approach may be faster by an unnoticeable few milliseconds, but the syntax is confusing. I would only use this in an environment where I didn't have access to jQuery.
Here is the code I used to test - it is fairly rudimentary but the times came back very consistent across multiple tries so I would say precise to around +- 5ms in each case. Tests were run in Chrome from my own home server:
<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
</head>
<body>
<div id="content"></div>
<script>
/**
* Test harness to find out the best method for dynamically loading a
* html page into your app.
*/
var test_times = {};
var test_page = 'testpage.htm';
var content_div = document.getElementById('content');
// TEST 1 = use jQuery to load in testpage.htm and time it.
/*
function test_()
{
var start = new Date().getTime();
$(content_div).load(test_page, function() {
alert(new Date().getTime() - start);
});
}
// 1044
*/
// TEST 2 = use <object> to load in testpage.htm and time it.
/*
function test_()
{
start = new Date().getTime();
content_div.innerHTML = '<object type="text/html" data="' + test_page +
'" onload="alert(new Date().getTime() - start)"></object>'
}
//1579
*/
// TEST 3 = use httpObject to load in testpage.htm and time it.
function test_()
{
var xmlHttp = new XMLHttpRequest();
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200)
{
content_div.innerHTML = xmlHttp.responseText;
alert(new Date().getTime() - start);
}
};
start = new Date().getTime();
xmlHttp.open("GET", test_page, true); // true for asynchronous
xmlHttp.send(null);
// 1039
}
// Main - run tests
test_();
</script>
</body>
</html>
try
async function load_home(){
content.innerHTML = await (await fetch('home.html')).text();
}
async function load_home() {
let url = 'https://kamil-kielczewski.github.io/fractals/mandelbulb.html'
content.innerHTML = await (await fetch(url)).text();
}
<div id="topBar"> HOME </div>
<div id="content"> </div>
When using
$("#content").load("content.html");
Then remember that you can not "debug" in chrome locally, because XMLHttpRequest cannot load -- This does NOT mean that it does not work, it just means that you need to test your code on same domain aka. your server
You can use the jQuery :
$("#topBar").on("click",function(){
$("#content").load("content.html");
});
$("button").click(function() {
$("#target_div").load("requesting_page_url.html");
});
or
document.getElementById("target_div").innerHTML='<object type="text/html" data="requesting_page_url.html"></object>';
<script>
var insertHtml = function (selector, argHtml) {
$(document).ready(function(){
$(selector).load(argHtml);
});
var targetElem = document.querySelector(selector);
targetElem.innerHTML = html;
};
var sliderHtml="snippets/slider.html";//url of slider html
var items="snippets/menuItems.html";
insertHtml("#main",sliderHtml);
insertHtml("#main2",items);
</script>
this one worked for me when I tried to add a snippet of HTML to my main.html.
Please don't forget to add ajax in your code
pass class or id as a selector and the link to the HTML snippet as argHtml
There is this plugin on github that load content into an element. Here is the repo
https://github.com/abdi0987/ViaJS
load html form a remote page ( where we have CORS access )
parse the result-html for a specific portion of the page
insert that part of the page in a div on current-page
//load page via jquery-ajax
$.ajax({
url: "https://stackoverflow.com/questions/17636528/how-do-i-load-an-html-page-in-a-div-using-javascript",
context: document.body
}).done(function(data) {
//the previous request fails beceaus we dont have CORS on this url.... just for illlustration...
//get a list of DOM-Nodes
var dom_nodes = $($.parseHTML(data));
//find the question-header
var content = dom_nodes.find('#question-header');
//create a new div and set the question-header as it's content
var newEl = document.createElement("div");
$(newEl).html(content.html());
//on our page, insert it in div with id 'inserthere'
$("[id$='inserthere']").append(newEl);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<p>part-result from other page:</p>
<div id="inserthere"></div>
Use this simple code
<div w3-include-HTML="content.html"></div>
<script>w3.includeHTML();</script>
</body>```
This is usually needed when you want to include header.php or whatever page.
In Javascript it's easy especially if you have HTML page and don't want to use php include function but at all you should write php function and add it as Javascript function in script tag.
In this case you should write it without function followed by name Just. Script rage the function word and start the include header.php
i.e convert the php include function to Javascript function in script tag and place all your content in that included file.
I use jquery, I found it easier
$(function() {
$("#navigation").load("navbar.html");
});
in a separate file and then load javascript file on html page
showhide.html
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
function showHide(switchTextDiv, showHideDiv)
{
var std = document.getElementById(switchTextDiv);
var shd = document.getElementById(showHideDiv);
if (shd.style.display == "block")
{
shd.style.display = "none";
std.innerHTML = "<span style=\"display: block; background-color: yellow\">Show</span>";
}
else
{
if (shd.innerHTML.length <= 0)
{
shd.innerHTML = "<object width=\"100%\" height=\"100%\" type=\"text/html\" data=\"showhide_embedded.html\"></object>";
}
shd.style.display = "block";
std.innerHTML = "<span style=\"display: block; background-color: yellow\">Hide</span>";
}
}
</script>
</head>
<body>
<a id="switchTextDiv1" href="javascript:showHide('switchTextDiv1', 'showHideDiv1')">
<span style="display: block; background-color: yellow">Show</span>
</a>
<div id="showHideDiv1" style="display: none; width: 100%; height: 300px"></div>
</body>
</html>
showhide_embedded.html
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
function load()
{
var ts = document.getElementById("theString");
ts.scrollIntoView(true);
}
</script>
</head>
<body onload="load()">
<pre>
some text 1
some text 2
some text 3
some text 4
some text 5
<span id="theString" style="background-color: yellow">some text 6 highlight</span>
some text 7
some text 8
some text 9
</pre>
</body>
</html>
If your html file resides locally then go for iframe instead of the tag. tags do not work cross-browser, and are mostly used for Flash
For ex : <iframe src="home.html" width="100" height="100"/>
I have an ERB document:
<!DOCTYPE html>
<html>
<head>
<script>
scrollDown = function() {
document.body.scrollTop = document.body.scrollHeight;
}
</script>
</head>
<body onload='scrollDown()'>
<div id='2'>
</div>
<div id='target'>
<%=#chat%> <!-- #chat is a variable from my ruby file -->
</div>
<form action="/addChat?n=<%=#name%>" method='post'>
<input name='nchat' type='text' onload='this.focus' autofill='no' style='width:100%;height:10em;vertical-align:top'>
<input type='submit'>
</form>
<a href='/home'>Go home!</a>
</body>
</html>
And I would like to have it so that every half of a second it will do two things. First it needs to move the contents of the <div id="target"> to <div id="2"> then reload the contents of <div id="target"> getting the variable #chat from another route (post \content do ... end).
I am using sinatra and heroku. PLEASE DO NOT ANSWER USING JQUERY. I DO NOT KNOW HOW TO USE JQUERY AND I WOULD LIKE TO UNDERSTAND HOW THE ANSWER WORKS.
I will be happy to add any resources you need to answer this question, and I will try to do so as promptly as possible.
Clarification
Here is my code which has been slightly modified since asking this question (I hope this code clarifies my question). When I enter the loop to move things from <div id="target"> to <div id="2"> into the console in browser (google chrome latest version) it runs fine and moves everything correctly. Here is the loop:
while (document.getElementById('target').childNodes.length > 0) {
document.getElementById("2").appendChild(document.getElementById('target').childNodes[0]);
}
Now my only remaining issue is reloading the content of <div id="target"> from the route in my app file post '/chatContent' do ... return #chat end where #chat is a dynamically changing variable every 0.5 seconds and before reloading each time running the above loop. Here is my current attempt at the reloading with the loop (also most of this is copy paste from various sources, so I don't really understand it):
var refreshDelay = 5000000;
function createRequestObject() {
var ro;
if(navigator.appName == "Microsoft Internet Explorer"){
ro = new ActiveXObject("Microsoft.XMLHTTP");
}else{
ro = new XMLHttpRequest();
}
return ro;
}
var http = createRequestObject();
function sndReq() {
while (document.getElementById('target').childNodes.length > 0) {
document.getElementById("2").appendChild(document.getElementById('target').childNodes[0]);
}
http.open('post', '/chatContent?n=<%=#name%>');
http.onreadystatechange = handleResponse;
http.send(null);
}
function handleResponse() {
while (document.getElementById('target').childNodes.length > 0) {
document.getElementById("2").appendChild(document.getElementById('target').childNodes[0]);
}
if(http.readyState == 4){
var response = http.responseText;
document.getElementById('target').innerHTML = response;
setTimeout(sndReq, refreshDelay);
}
}
setTimeout(sndReq, refreshDelay);
</script>
<script>
scrollDown = function() {
document.body.scrollTop = document.body.scrollHeight;
}
function movethings() {
while (document.getElementById('target').childNodes.length > 0) {
document.getElementById("2").appendChild(document.getElementById('target').childNodes[0]);
}
}
Just to clarify, what I am looking for is a replacement for the above code, including 1st) Running the loop to move the contents of <div id="target"> to <div id="2"> then 2nd) reloading <div id='target'>. The order is important.
I hope that this clarification has narrowed the scope of my question. If it has not, please leave a comment about why it is too broad because I do not understand how it is.
Edit 2
In summary, each answer must, in order, do the following:
Move content of <div id="target"> to <div id="2">
Reload <div id="target"> so that it contains the return of my Sinatra route, post "/chatContent"
There's something wrong with my script, it doesn't render the JS correctly. I tried to pinpoint the problem but cannot find any typo. If i load the page, the tag is blank, making all css & other JS disabled. But suprisingly the data is loader correctly. If i remove the script, everything went to normal.
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="jquery-1.9.1.js"></script>
<script src="jquery-ui.js"></script>
<script>
// Create a connection to the file.
var Connect = new XMLHttpRequest();
// Define which file to open and
// send the request.
Connect.open("GET", "Customers.xml", false);
Connect.setRequestHeader("Content-Type", "text/xml");
Connect.send(null);
// Place the response in an XML document.
var TheDocument = Connect.responseXML;
// Place the root node in an element.
var Customers = TheDocument.childNodes[0];
// Retrieve each customer in turn.
$("#middle").ready( function () {
document.write("<ul class='product'>");
for (var i = 0; i < Customers.children.length; i++)
{
var dul = "wawa"+[i];
//document.getElementById(dul).addEventListener('click', storeData, false);
var Customer = Customers.children[i];
// Access each of the data values.
var Pic = Customer.getElementsByTagName("pic");
var Name = Customer.getElementsByTagName("name");
var Age = Customer.getElementsByTagName("tipe");
var sex = Customer.getElementsByTagName("country");
var checked = window.localStorage.getItem("selected"+i);
// Write the data to the page.
document.write("<li><img href='./pic/");
document.write(Pic[0].textContent.toString());
document.write(".jpg'><a href='display.html?id="+i+"'>");
document.write(Name[0].textContent.toString());
document.write("</a><div class='age'>");
document.write(Age[0].textContent.toString());
document.write("</div><div class='sex'>");
document.write(sex[0].textContent.toString());
document.write("</div><div class='cex'>");
document.write("<input name='checkbox' type='checkbox' id='wawa_"+i+"'");
if (!checked) {
document.write(" onClick='cbChanged(this, "+i+")'");
} else {
document.write("checked onClick='cbChanged(this, "+i+")'");
}
document.write("></div></li>");
}
document.write("</ul>");
});
function cbChanged(checkboxElem, x) {
if (checkboxElem.checked) {
window.localStorage.setItem("selected"+x, x);
alert("That box was checked.");
} else {
window.localStorage.removeItem("selected"+x);
alert("That box was unchecked.");
}
}
</script>
</head>
<body>
<div class="container">
<div class="content" id="middle">
</div>
<div class="content" id="footer">
</div>
</div>
</body>
</html>
Ok here's the full source.
You don't close the HTML img tag right
Change
document.write("<li><img href='./pic/");
document.write(Pic[0].textContent.toString());
document.write("'.jpg><a href='display.html?id="+i+"'>");
// ^ this quote
To
document.write("<li><img href='./pic/");
document.write(Pic[0].textContent.toString());
document.write(".jpg'><a href='display.html?id="+i+"'>");
// ^ should be here
If you open the developer console you can usually see where errors like this take place. It will also output and javascript errors that you come across so it will make that part a whole lot easier. Do you have any errors in your console?
The dev consoles are:
Chrome: It is built it.
Firefox: Firebug
Safari: It's built it
EDIT:
Don't do var functionName = function() {..} unless you know about how hoisting works. This is contributing to you problem so change
cbChanged = function(checkboxElem, x) {
if (checkboxElem.checked) {
window.localStorage.setItem("selected"+x, x);
alert("That box was checked.");
} else {
window.localStorage.removeItem("selected"+x);
alert("That box was unchecked.");
}
}
To
function cbChanged(checkboxElem, x) {
if (checkboxElem.checked) {
window.localStorage.setItem("selected"+x, x);
alert("That box was checked.");
} else {
window.localStorage.removeItem("selected"+x);
alert("That box was unchecked.");
}
}
Without the above changes the function cbChanged is not hoisted. So if you call it before it is reached you will get an error.
There are several other things that stand out to me on this. You might want to spend some more time on your javascript fundamentals. Read up on why document.write is a bad thing. Try removing parts of the script to narrow down what is causing the problem. It would have made this easier to fix if you had made a fiddle.
I used the .load() function. It works in Dreamweaver's Live View, but not in Firefox, Chrome, or IE.
Here is my HTML section:
<script src="js/jquery.js"></script>
<script src="tabsPull.js"></script>
<h1>Homework Assignments</h1>
<ul id="button-menu">
<li id="a1"><input class="no" type="button" onClick="ChangeActive(1)" value="Mon"></li>
<li id="a2"><input class="no" type="button" onClick="ChangeActive(2)" value="Tues/Wed"></li>
<li id="a3"><input c lass="no" type="button" onClick="ChangeActive(3)" value="Thurs/Fri"></li>
</ul>
<div id="tabInner" class="tabInner">
</div>
The ChangeActive() is in a separate JS file (tabsPull.js):
var active = 0
function ChangeActive(active){
if (active==1) {
document.getElementById("a1").className = "active";
document.getElementById("a2").className = "";
document.getElementById("a3").className = "";
$('#tabInner').load('http://axoplanner.weebly.com/monday.html #content');
} else if (active==2) {
document.getElementById("a2").className = "active";
document.getElementById("a1").className = "";
document.getElementById("a3").className = "";
$('#tabInner').load('http://axoplanner.weebly.com/tuesdaywednesday.html #content');
} else if (active==3) {
document.getElementById("a3").className = "active";
document.getElementById("a1").className = "";
document.getElementById("a2").className = "";
$('#tabInner').load('http://axoplanner.weebly.com/thursdayfriday.html #content');
}
}
What's the problem? It works in DW, but why not the browsers??? The reason I pull things from Weebly is because I need others to update it, and Weebly is easier.
See this page from the jQUery documentation.
From the Documentation:
"Due to browser security restrictions, most "Ajax" requests are subject to the same origin policy; the request can not successfully retrieve data from a different domain, subdomain, or protocol."
So, DreamWeaver must not have the security restrictions that most browsers have, so it works in DreamWeaver. But an absolute path will not work as an argument for .load() in most browsers.