Feels good to finally submit some of my own questions here in the pursuit of knowledge. I was wondering if anyone could help me with the following problem. I have a jQuery GET where a JSON object gets pulled via an API.
My code:
var div = document.getElementById('myData');
jQuery(document).ready(function() {
const Url = 'https://boards-api.greenhouse.io/v1/boards/sunrock/jobs/5104060003';
jQuery('.btn').click(function() {
jQuery.ajax({
url: Url,
type: 'GET',
success: function(result) {
console.log(result);
x = result.title
var jobTitle = x;
document.getElementById('jobTitle').innerHTML = jobTitle;
y = result.content
var jobDescription = y;
document.getElementById('jobDescription').innerHTML = jobDescription;
},
error: function(error) {
console.log(`Error ${error}`)
},
});
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<button class='btn'>
Clicke here for the GET request
</button>
<div id='jobTitle'>Job Title here</div>
<div id='jobDescription'>Job Description here</div>
I want some of this information to display in HTML. But whenever i apply a variable with the information to a div using innerHTML, i get the following:
<p><strong>Your role</strong></p> <p>
As you can see the HTML elements are typed out fully, which is weird. Does anyone know how to remedy this?
I have a jsFiddle with my code here: https://jsfiddle.net/whimsicalcodingman/38a45udt/159/
As #GrafiCode pointed out, the issue isn't in your code, when you access the content property. The issue is in the information you are receiving for the content property.
The property content returns this:
"content": "<p><strong>Your role</strong></p>\n<p>The Project Finance...
Which is:
"content": "<p><strong>Your role</strong></p>\n<p>The Project Finance...
Therefore, I see two options for you, you can either fix this in the backend or fix this in the frontend.
If you want to fix this in the frontend, then you might be interested to use an HTML Sanitizer.
For example, you could Mozilla's HTML Sanitizer API
If you want to fix this in the backend, you can either fix the text manually or you can try to find a library.
For example, if your backend is NodeJS, then you can use this package library sanitize-html
Related
I have an ajax call to a PHP module which returns some HTML. I want to examine this HTML and extract the data from some custom attributes before considering whether to upload the HTML into the DOM.
I can see the data from the network activity as well as via console.log. I want to extract the values for the data-pk attribute and test them before deciding whether to upload the HTML or just bypass it.
$.ajax({
url: "./modules/get_recent.php",
method: "POST",
data: {chat_id:chat_id, chat_name:chat_name, host_id:host_id, host_name:host_name}, // received as a $_POST array
success: function(data)
{
console.log(data);
},
})
and some of the console log data are:
class="the_pks" data-pk="11"
class="the_pks" data-pk="10"
etc.
In the above data I want to extract and 'have a look at' the numbers 11 and 10.
I just do not know how to extract these data-pk values from the returned data from the ajax call. Doing an each on class 'the_pks' does not work as at the time I am looking at the data they have not been loaded into the DOM.
I have searched SO for this but have not come up with an answer.
Any advice will be most appreciated.
I hope I understand your question.
If you get a HTML as a response, you can always create an element and insert that html inside it, without adding it to the DOM. And after that you can search it as you do with a DOM element.
const node = document.createElement("div");
//then you can do
node.appendChild(data);
// or
node.innerHTML = data;
And after that you can search inside the node:
node.querySelectorAll("[data-pk]")
I will re-engineer this - it was probably a clumsy way to try and achieve what I wanted anyway. Thanks to those who tried to help.
This question might be quite specific to sparkfun, but I still wish to make it as a general question due to my limited experience in javascript.
I have been using the follow html and javascript (d3.js) file to load json data from sparkfun data server:
index.html
<!DOCTYPE html>
<meta charset="utf-8">
<body>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
var data_sensor;
var url = "https://data.sparkfun.com/output/w5nEnw974mswgrx0ALOE.json"
d3.json(url, function (error,json) {
if (error) throw error;
data_sensor=json;
console.log(data_sensor)
})
</script>
</body>
After running the script, i will end up with all data array stored in variable data_sensor for post-analyse.
What i wish to do now is to create a dash board that downloads and stores only the latest value. i understand that i could just use the first value in the data_sensor to do so (i.e., data_sensor[0]) but such method becomes quite inefficient with the growth of data.
Thanks!
When I've wanted to load JSON from somewhere I've always used jQuery:
Import jQuery like this:
<script src="jquery-3.2.1.min.js"></script>
Then you can do something like this to get your JSON file:
var data_sensor;
var url = "https://data.sparkfun.com/output/w5nEnw974mswgrx0ALOE.json"
$.getJSON(url, function(data) {
data_sensor = data;
console.log(data_sensor)
});
Hope that helps!
Not an expert here, but their docs state tat you can use paging to get the first 250kb of data:
var url = "https://data.sparkfun.com/output/w5nEnw974mswgrx0ALOE.json?page=1";
You can get your first object/set of data, and I'm afraid there's no general way to take only part of any API response - request is request, it could send you every possible data depending on architecture, from "OK" string to 200MB of data. Carefully reading docs is your best bet.
I've been trying to write a program in JavaScript that can retrieve weather data from OpenWeatherMap using JSON. I'm pretty new to JSON, but I think that I understand the logic behind it. However, when I click the "Get JSON" button, nothing happens. It's possible that "data.temp" in the getJSON function is incorrect, but if I'm understanding correctly, it seems like it should at least print the word "Temperature:" HTML and JavaScript are enclosed below, any help is appreciated.
HTML:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"> </script>
<div id = "owmData" style = "background-color:#cc0;">
Weather data should go here.
</div>
Get JSON
JavaScript:
$(document).ready(function() {
/* Operate when "getIt" button is clicked.*/
$("#getIt").click(function(event){
/* Variable storing weather information.*/
var weatherNow="http://api.openweathermap.org/data/2.5/weather?q=London,uk&callback=test&appid=******************";
$.getJSON(weatherNow,function(data){
$('#owmdata').append('<p>Temperature : ' + data.temp+ '</p>');
});
});
});
In your request parameters you are specifying "test" as the callback function. You can strucuture your request url like this without the ref to the callback and access the data directly:
http://api.openweathermap.org/data/2.5/weather?q=London,uk&appid=*************
"temp" is nested inside of the property "main" so you would reference it as data.main.temp
I'm trying to make a field similar to the facebook share box where you can enter a url and it gives you data about the page, title, pictures, etc. I have set up a server side service to get the html from the page as a string and am trying to just get the page title. I tried this:
function getLinkData(link) {
link = '/Home/GetStringFromURL?url=' + link;
$.ajax({
url: link,
success: function (data) {
$('#result').html($(data).find('title').html());
$('#result').fadeIn('slow');
}
});
}
which doesn't work, however the following does:
$(data).appendTo('#result')
var title = $('#result').find('title').html();
$('#result').html(title);
$('#result').fadeIn('slow');
but I don't want to write all the HTML to the page as in some case it redirects and does all sorts of nasty things. Any ideas?
Thanks
Ben
Try using filter rather than find:
$('#result').html($(data).filter('title').html());
To do this with jQuery, .filter is what you need (as lonesomeday pointed out):
$("#result").text($(data).filter("title").text());
However do not insert the HTML of the foreign document into your page. This will leave your site open to XSS attacks.
As has been pointed out, this depends on the browser's innerHTML implementation, so it does not work consistently.
Even better is to do all the relevant HTML processing on the server. Sending only the relevant information to your JS will make the client code vastly simpler and faster. You can whitelist safe/desired tags/attributes without ever worrying about dangerous ish getting sent to your users. Processing the HTML on the server will not slow down your site. Your language already has excellent HTML parsers, why not use them?.
When you place an entire HTML document into a jQuery object, all but the content of the <body> gets stripped away.
If all you need is the content of the <title>, you could try a simple regex:
var title = /<title>([^<]+)<\/title>/.exec(dat)[ 1 ];
alert(title);
Or using .split():
var title = dat.split( '<title>' )[1].split( '</title>' )[0];
alert(title);
The alternative is to look for the title yourself. Fortunately, unlike most parse your own html questions, finding the title is very easy because it doesn;t allow any nested elements. Look in the string for something like <title>(.*)</title> and you should be set.
(yes yes yes I know never use regex on html, but this is an exceptionally simple case)
Hey all. I was fortunate enough to have Paolo help me with a piece of jquery code that would show the end user an error message if data was saved or not saved to a database. I am looking at the code and my imagination is running wild because I am wondering if I could use just that one piece of code and import the selector type into it and then include that whole json script into my document. This would save me from having to include the json script into 10 different documents. Hope I'm making sense here.
$('#add_customer_form').submit(function() { // handle form submit
The "add_customer_form" id is what I would like to change on a per page basis. If I could successfully do this, then I could make a class of some sort that would just use the rest of this json script and include it where I needed it. I'm sure someone has already thought of this so I was wondering if someone could give me some pointers.
Thanks!
Well, I hit a wall so to speak. The code below is the code that is already in my form. It is using a datastring datatype but I need json. What should I do? I want to replace the stupid alert box with the nice 100% wide green div where my server says all is ok.
$.ajax({
type: "POST",
url: "body.php?action=admCustomer",
data: dataString,
success: function(){
$('#contact input[type=text]').val('');
alert( "Success! Data Saved");
}
});
Here is the code I used in the last question, minus the comments:
$(function() {
$('#add_customer_form').submit(function() {
var data = $(this).serialize();
var url = $(this).attr('action');
var method = $(this).attr('method');
$.ajax({
url: url,
type: method,
data: data,
dataType: 'json',
success: function(data) {
var $div = $('<div>').attr('id', 'message').html(data.message);
if(data.success == 0) {
$div.addClass('error');
} else {
$div.addClass('success');
}
$('body').append($div);
}
});
return false;
});
});
If I am right, what you are essentially asking is how you can make this piece of code work for multiple forms without having to edit the selector. This is very easy. As long as you have the above code included in every page with a form, you can change the $('#add_customer_form') part to something like $('form.json_response'). With this selector we are basically telling jQuery "any form with a class of json_response should be handled through this submit function" - The specific class I'm using is not relevant here, the point is you use a class and give it to all the forms that should have the functionality. Remember, jQuery works on sets of objects. The way I originally had it the set happened to be 1 element, but every jQuery function is meant to act upon as many elements as it matches. This way, whenever you create a form you want to handle through AJAX (and you know the server will return a JSON response with a success indicator), you can simply add whatever class you choose and the jQuery code will take over and handle it for you.
There is also a cleaner plugin that sort of does this, but the above is fine too.
Based on your question, I think what you want is a jQuery selector that will select the right form on each of your pages. If you gave them all a consistent class you could use the same code on each page:
HTML
<form id="some_form_name" class="AJAX_form"> ... </form>
Selector:
$('form.AJAX_form")