I want to execute some JS library in RSpec.
for example
I can execute "Payment Library" of JavaScript Library in HTML like below.
<!DOCTYPE html>
<html>
<head>
<script src="https://sample.example/payment.js"></script>
</head>
<body>
<div id="foo"></div>
</body>
<script>
$(document).ready(function(){
// Payment depends on "https://sample.example/payment.js"
Payment.init("11111");
Payment.getToken({cardNo: "1111111111111111", expired: "2001"});
});
</script>
</html>
Is it possible to load external JavaScript Library like using "script" tag in RSpec like this.
js_code = <<'EOS'
{
<script src="https://sample.example/payment.js"></script>
Payment.init("11111");
Payment.getToken({cardNo: "1111111111111111", expired: "2001"});
}
EOS
ExecJS.eval js_code
Pleas give me any advice.
Thanks.
A good read, recent enough to take it into account : https://robots.thoughtbot.com/headless-feature-specs-with-chrome
Basically, it'll wait for your js (the one you included in your pages) to finish execute before validating your tests. This is what you want.
From there, it'd be advisable to avoid any js injections (even if it is available), and then rely entirely on the headless browser setup
Related
I have a simple javascript function on my page that works well, but I decided to move it away from index.html to a seperate js file.
The problem is that I cannot get it to execute from that seperate file.
This has been asked many many times here and the solution is always the same, but it just wont work for me. Also on google I can find lots of examples but they simply do not work for me. I tried many of them but with no luck.
So I must be missing something obvious I guess.
This is the header of my index.html
<?php session_start(); ?>
<html>
<head>
<title>Test</title>
<link rel="stylesheet" href="test.css">
<script src="gttJSFunctions.js" type="text/javascript"></script>
</head>
<body>
...
The function in gttJSFunctions.js is called Logout()
As I said it works perfect when I put it inside my index.html, but I cant get it to execute from the seperate js file
this is the entire content of gttJSFunctions.js
<script language='JavaScript'>
function Logout()
{
conf = confirm("Are you sure you want to logout?");
if (conf)
{
window.open("logout.php", "_self");
}
}
Can someone please point out what I am doing wrong.
Your external JavaScript file should contain only JavaScript. No tags.
Just remove the <script language='JavaScript'> from your file and you are good to go.
Remove <script language='JavaScript'> from your gttJSFunctions.js file because it's already a Javascript file, you don't have to specify it.
Best practice: put <script ... /> tags at the bottom of your code, just before the </body> tag. It will improve your page speed and also, as Archer told, avoid you to deal with the DOM ready common mistake.
I’m including one HTML file in another, as a way to reuse my header and navigation generation logic.
The trouble is that when I browse to pages on my site, I can see the HTML that isn’t included in the include files load first. Only then you can see the menus and banners load afterwards. I’d like everything to appear to load at the same time.
Here's the rendered HTML.
And here’s a code snippet showing you how I generate these pages:
<!DOCTYPE html>
<html lang="en">
<head>
<script src="assets/js/jquery-2.1.3.min.js"></script>
<script>
$(function(){
$("#includeHeader").load("includes/templates/header.html");
$("#includeNavigation").load("includes/templates/navigation.html");
});
</script>
<div id="includeHeader"></div>
</head>
<body>
<div id="wrapper">
<!-- Navigation -->
<div id="includeNavigation"></div>
I’m currently working with the code to try to move any external libraries / CSS to the bottom of the page vs. in the header. But so far, that hasn’t really changed or improved anything.
You should use one of the templating languages.
If your includes are simple HTML files then you could use Handlebars or Dust - you could just copy your code and that's it, then in Javascript you would need just render these templates - see the documentation.
You could use Jade/Pug instead, but its syntax is different from the HTML, so that's not just question of copy-paste.
You are using $(handler) to load them, which is a form for $.ready(). So it waits for the document to load everything before loading your header.html and navigation.html.
Try
<head>
<script src="assets/js/jquery-2.1.3.min.js"></script>
</head>
<body>
<div id="includeHeader"></div>
<script>
$("#includeHeader").load("includes/templates/header.html");
$("#includeNavigation").load("includes/templates/navigation.html");
</script>
</body>
Your problem is that the load function does not run until the document.ready event has fired. Which is probably after your page has started rendering. To get everything to appear at the same time you could use the callback from .load to show everything. So everything is hidden,
$( "#result" ).load( "ajax/test.html", function() {
/// show your stuff
});
You will of course need to know both has loaded.
I would recommend not using javascript to render HTML from a static path and would use a server side lang instead for speed.
I think it make some level fast its not waiting for load all dom element, I am considering #includeNavigation element is under #includeHeader element
<head>
<script src="assets/js/jquery-2.1.3.min.js"></script>
</head>
<body>
<div id="includeHeader"></div>
<script>
$("#includeHeader").load("includes/templates/header.html", function(data){
console.log("header loaded");
$("#includeNavigation").load("includes/templates/navigation.html", function(data){
console.log("navigation loaded");
});
});
</script>
</body>
So, lets say you have a page that wants to load from a javascript file and it includes
temp.html file
<script src="example.js"></script>
<p class="one"></p>
Now in the example.js file you have a function that is
function getInfo() {
var place = "foo"
$(".one").html(place);
}
//Edit currently I call the function inside the JS file
getInfo();
My question is how would you connect the two files so that the external javascript file knows that it is pointed to the paragraph with the class one?
Normally when this is in a single page, you would call the function and the info will be set.
I have seen a getScript method and a load method for Jquery. Would that be applicable here?
Any ideas on how to approach this? If you provide some code that will be super helpful.
Thanks in advance.
Looks like you want to execute getInfo() as soon as it's defined (i.e.: example.js is loaded).
You can try this approach:
<script src="example.js" onload="getInfo();"></script>
In your example.js, change getInfo() to something like this:
function getInfo() {
$(document).ready(function() {
var place = "foo"
$(".one").html(place);
});
}
Your language is confusing, but you could use jQuery's $(document).ready function which would suffice. Generally speaking, an externally loaded file should execute where the tag is in the script.
A hack could be to place a tag before the end of your document body, give it an id, and then use $('#id').ready() there. In general though, you could just try coding the transclusion concept (I'm guessing you're used to this) from scratch using intervals and timeouts.
<div id="rdy">
</div>
</body>
Then in your file:
$('#rdy').ready(getInfo);
Just my added opinion, you should consider that Google is up to some not-so-nice things these days, they are long-gone from the "do no evil" mantra.
If we assume you have a JavaScript file that contains this content:
function getInfo() {
var place = "foo"
$(".one").html(place);
}
then your markup will look something like this:
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
<script src="example.js"></script>
<script>
$(function(){
getInfo();
});
</script>
</head>
<body>
<p class="one"></p>
</body>
</html>
$(function(){ ... }); is just the simplified version of $(document).ready(function(){ ... });. They both more or less handle the onload event, which fires when page has finished loading.
I'm very new to JavaScript (just started a few hours ago and trying to get a script working). I went through a few tutorials on W3 and the 'hello world' code works when I paste it directly into my HTML but I'm having a problem with a script (I've had problems with other scripts as well but I am not sure what I'm doing wrong).
I have this code that I want to test in my HTML, I copied the HTML in and it looks the same then I made a file in my static folder called edit.js and copied the JavaScript into it (exactly as shown). It didn't work no errors on the page but when I click it nothing happens. I tried to paste a W3 'hello world' code in and that worked but this script does not.
I tried to inspect the code in Chrome and that's where I see the above error (under the resources tab). I can open the js file using Chrome which makes me think the js file is accessible and pointing correctly but I'm not sure how to get it working. I'm using Jinja2 as my template engine to render the HTML and in my header I have:
<script language="JavaScript" type="text/javascript" src="static/edit.js"></script>
and in my main template (the one that gets rendered on all pages) I have:
<script language="JavaScript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>
edit.js:
(even putting it within the script tag directly on the page I want to use it on doesn't work)
$('#editvalue').click(function(e){$('#storedvalue').hide();$('#altervalue').show();});
$('#savevalue').click(function(e){
var showNew = $('#changevalue').val();
$('#altervalue').hide();
$('#storedvalue').show();
$('#storedvalue span').text(showNew);
});
HTML:
(it's embedded in a larger page)
<head>
<script language="JavaScript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>
<script language="JavaScript" type="text/javascript" src="static/edit.js"></script>
</head>
... my html code..
<div id="wrapper">
<div id="container">
<div id="storedvalue"><span>Hello</span> [edit]</div>
<div id="altervalue" style="display:none;"><input type="text" name="changevalue" id="changevalue" value="Hello"> [save]</div>
</div>
</div>
I have never been able to successfully run a JavaScript that wasn't on W3 yet. I get the same problem with other scripts even though I see people online saying they work fine for them. Do I need to do anything extra to make this work?
My two questions are:
What am I doing wrong?
Because Javascript seems to just not work when there's a problem, is there a way to get errors or information on what's actually wrong?
I read Uncaught ReferenceError: $ is not defined? and have been trying to figure this out for the last hour and can't see my problem.
First you need to place the jQuery script tag first.
Second, you need to do one of the following things:
Put your code within this function:
$(document).ready(function(){/*CODE HERE*/});
Or like this:
$(function(){
/*CODE HERE*/
});
The DOM needs to be ready before you can use it. Placing your code within anonymous functions that are executed on the ready event of the DOM is how you can do this.
Edit:
$(function(){
$('#editvalue').click(function(e){$('#storedvalue').hide();$('#altervalue').show();});
$('#savevalue').click(function(e){
var showNew = $('#changevalue').val();
$('#altervalue').hide();
$('#storedvalue').show();
$('#storedvalue span').text(showNew);
});
});
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>
Script tag for jQuery should come before your custom javascript.
Follow by edit.js
<script type="text/javascript" src="static/edit.js"></script>
Try removing the language attribute..sometimes work for me. It's obsolete now .. i think
You need to include jquery before you can use it.
I am working on ASP.NET 3.5, c#, visual studio 2010. I have made a master file and a default page that uses this master file. I have placed a couple asp:contentplaceholders in the master and corresponding code in the page that uses this master. I have also inserted JavaScript like this in the content page (and not the master):
<asp:Content ID="Content6" ContentPlaceHolderID="Mainpage" Runat="Server">
<script src="path1" type="text/javascript"></script>
<script src="path2" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
var options = {
//some java code
};
$(".mycssclass").effect(options);
});
</script>
</asp:Content>
On running the website I get the following runtime error in visual studio:
Microsoft JScript runtime error: 'this.node' is null or not an object
and it point to some function inside the JavaScript like
this.node.onload=function(){..............//I am not a java guy so do not know much about this
Where am I going wrong? Why does the site compile correctly but throw this runtime error?
I also tried inserting this java code inside the master file in the <head>, but same error. This is urgent please so if someone experienced can pinpoint where exactly to put the code that would be solve my problem quickly.
Have you included a reference to the jQuery library? A good practice would be to have the jQuery include in the Master.
<head>
<script type="text/javascript"
src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js">
</script>
<!-- the remainder of your .js references should follow-->
</head>
If it's your intention to have that script run on 'page load', then ensure you have it set correctly:
$(document).ready(function() {
// put all your jQuery goodness in here.
});
More info on jQuery document ready.
I'm not sure exactly what it is you are doing with that snippet of code, but I don't think it is the proper syntax.
You probably should re-write it to look like this:
$(document).ready(
function () {
var options = {
//some java code
};
$(".mycssclass").effect(options);
});
Just passing in the function to the jQuery selector will probably get some wonkiness.
Thank you everyone! there was no problem with either the syntax in the javascript or the location/page where it was first included by me. I just figured out that the mistake was somewhere else. This javascript works on an <img> tag. It zooms the image insdie the <img> tag. I was using the <asp:ImageButton> instead og <img>. It works perfect as soon as I replaced it. Thank you all for your time and the knowledge sharing.