Dynamically generated HTML selectedIndex returns null - javascript

I am trying to refactor old code without completely redoing the program.
I have objects that are strategically named to be a value of the string from vendor. (vendor = "Ansys" or vendor = "Cadence")
var Ansys = {key:'ansyskeys', loaded:0, display: "none", otherkey: 'anotherkey'};
var Cadence = {key:"cdskeys", loaded:0, display: "none", otherkey: 'cotherkey'};
My previous HTML code that was static and had many entries that looked like:
<div id="ansyskeys" style="display:none">
<select id="anotherkey" size="5" onchange="selectOther('anotherkey')"></select>
</div>
To replace this, I made a function -ignore the use of eval, security is no concern:
function createDiv()
{
var vendorKey = eval(vendor).key;
var otherVendorKey = eval(vendor).otherkey;
var myDiv = document.createElement('div');
var html = '<select id="' + otherVendorKey + '" size="4" onchange="selectOther('+ otherVendorKey + ')"></select>';
myDiv.innerHTML = html;
myDiv.id = vendorKey;
document.body.appendChild(myDiv);
}
I am recieving my desired result, however, when I try to use selectedIndex in the function selectOther, it appears that mk is null.
function selectOther(wid)
{
var mk = document.getElementById(wid);
alert(mk);
var index = mk.selectedIndex;
key = mk.options[index].value;
setKey ();
getKeyStats ();
}
The HTML seems to be working, but doesnt seem to recognize the id from wid. Any help would be much appreciated.

Related

I am using TypeForm and need to autofill hidden fields from a .js script

I am using TypeForm and need to autofill utm fields from javascript, everything works except I cant get the html created from the script to show on the page. I am embedding the below code in a html/js module in a clickfunnels page. Any help is very much appreciated.
<div id="typeform"></div>
<script>
//<div id="typeform"></div> <div id="row--27712"></div>
window.onload = function(){
var source = "utm_source=1";
var medium = "utm_medium=2";
var campaign = "utm_campaign=3";
var content = "utm_content=4";
var keyword = "utm_term=5"
var HTMLA = '<div data-tf-widget="mYH43Dz4" data-tf-iframe-props="title=TFS - ANALYTICSDEV V1.1" data-tf-medium="snippet" data-tf-hidden=';
var HTMLquote = '"';
var HTMLcomma = ',';
var HTMLB = '" style="width:100%;height:600px;"></div><script src="//embed.typeform.com/next/embed.js">';
var HTMLC = '</'
var HTMLD = 'script>'
var form = HTMLA.concat(HTMLquote).concat(source).concat(HTMLcomma).concat(medium).concat(HTMLcomma).concat(campaign).concat(HTMLcomma).concat(content).concat(HTMLcomma).concat(keyword).concat(HTMLB);
var form2 = form.replaceAll("undefined","");
document.getEIementById('typeform').innerHTML = form2;
};
</script>
You can pass custom values to hidden fields like this:
<div id="typeform"></div>
<link rel="stylesheet" href="//embed.typeform.com/next/css/widget.css" />
<script src="//embed.typeform.com/next/embed.js"></script>
<script>
var source = '1';
var medium = '2';
var campaign = '3';
var content = '4';
var keyword = '5';
window.tf.createWidget('mYH43Dz4', {
container: document.getElementById('typeform'),
hidden: {
utm_source: source,
utm_medium: medium,
utm_campaign: campaign,
utm_content: content,
utm_term: keyword
}
});
</script>
In case you already have those values in your host page URL, you could use transitive search params feature:
<div
data-tf-widget="mYH43Dz4"
data-tf-transitive-search-params="utm_source,utm_medium,utm_campaign,utm_content,utm_term"
></div>
<script src="//embed.typeform.com/next/embed.js"></script>
Your code does not work because you are adding script tag via innerHTML. This script tag will not execute for security purposes:
https://developer.mozilla.org/en-US/docs/Web/API/Element/innerHTML#security_considerations
https://www.w3.org/TR/2008/WD-html5-20080610/dom.html#innerhtml0

get innerHTML of the children of the currentTarget

I have this part of my html (more than one of same type):
<div class="this-product">
<img src="images/bag2.jpeg" alt="">
<span class="product-name">iPhone</span>
<span class="product-price">345445</span>
</div>
And this part of my javascript code meant to get the innerHTML of the span tags and assign them values as shown:
var productList = document.querySelectorAll('.this-product');
productList.forEach(function (element) {
element.addEventListener('click', function (event) {
var productName = document.getElementsByClassName('product-name')[0].innerHTML;
var productPrice = document.getElementsByClassName('product-price')[0].innerHTML;
var cartProductname = event.currentTarget.productName;
var cartProductprice = event.currentTarget.productPrice;
var cartContent = '<div class="cart-product"><span class="block">'+cartProductname+'</span><span class="block">'+cartProductprice+'</span></div><div class="cart-result">Total = </div><br>'
document.getElementById('dashboard-cart').innerHTML += cartContent;
});
});
Everything works well and every variable above has its value shown well apart from cartProductname and cartProductprice which display as undefined and also vscode tells me that productName is declared but not read. Where could I be wrong?
If I understand your question correctly, you could call querySelector on each product item element that you are iterating like so:
var productList = document.querySelectorAll('.this-product');
productList.forEach(function (element) {
element.addEventListener('click', function (event) {
// Update these two lines like so:
var productName = element.querySelector('.product-name').innerHTML;
var productPrice = element.querySelector('.product-price').innerHTML;
var cartProductname = productName; // event.currentTarget.productName;
var cartProductprice = productPrice; // event.currentTarget.productPrice;
var cartContent = '<div class="cart-product"><span class="block">'+cartProductname+'</span><span class="block">'+cartProductprice+'</span></div><div class="cart-result">Total = </div><br>'
document.getElementById('dashboard-cart').innerHTML += cartContent;
});
});
You can use event.currentTarget.querySelector('.product-name') to get element inside of another element

Can't read property 'style' of null from dynamic html code

I am refactoring old code and am unable to find a solution to the typeerror (I understand the use of eval is frowned upon but in my case there is no need for security).
I have objects like:
var Ansys = {key:'ansyskeys', loaded:0, display: "none", otherkey: 'anotherkey'};
var Cadence = {key:"cdskeys", loaded:0, display: "none", otherkey: 'cotherkey'};
I had previous HTML code that was static that I am trying to refactor to be dynamic:
<div id="ansyskeys" style="display:none">
<select id="anotherkey" size="5" onchange="selectOther('anotherkey')"></select>
</div>
Which is called from (vendor holds the name of my object I want):
document.getElementById(eval(vendor).key).style.display = eval(vendor).display;
How would I go about changing the HTML to be something like (I am using display in my object for something else)
<div id="eval(vendor).key" style="display:none">
<select id="eval(vendor).otherkey" size="5" onchange="selectOther(eval(vendor).otherkey)"></select>
</div>
Any help will be much appreciated.
If vendor holds the object you need:
var key = vendor.key;
var otherkey = vendor.otherkey;
var myDiv = document.createElement('div');
var html = '<select id="' + otherkey + '" size="5" onchange="selectOther('+ otherkey + ')"></select>';
myDiv.innerHTML = html;
myDiv.id = key;
document.body.appendChild(myDiv);

jQuery insert/remove text at specific position in input field/textarea

I am trying to do similar thing as YouTube has when you are embeding a video and you want to get a code. You can click on checkboxes or select size and it dynamically changes the value of input field.
Does somebody have idea how to do it?
I managed to write a code that is replacing the width correctly, but I dont know how to make a code that would add &scheme=XXX at the end of the link or remove it if user selects no color scheme.
This is the code for width,I dont think its best one, but works:
$("#width").on("change keyup", function(){
var width = $(this).val();
if (width){
$("#embed-text").val($("#embed-text").val().replace(/ (width\s*=\s*["'])[0-9]+(["'])/ig, ' width=\''+width+'\''));
}
});
Here is textarea which I am trying to change and inputs I'm using for it:
The ID is taken from PHP, in actual textarea that jQuery sees the ".$id." is actual number
<textarea class='clean' id='embed-text'><iframe src='http://my.url/embed/?r=".$id."' width='600' height='".$height."' frameborder='0' marginwidth='0' marginheight='0' allowtransparency='true'></iframe></textarea>
<div style='padding-right: 10px; display: inline-block;'>
Color scheme:
<select id='schemes' class='clean'>
<option value='-'>None</option>
<option value='xxx'>Xxx</option>
</select>
</div>
<div style='padding-right: 10px; display: inline-block;'>
Width: <input type='number' min='250' max='725' value='600' id='width' class='clean'>
</div>
When user does not select any scheme (or changes from XXX to None), I want link in textarea (iframes src) to be like this:
http://my.url/embed/?r=X
But when he selects any scheme, i would like it to look like this:
http://my.url/embed/?r=X&scheme=XXX
I actually have no idea how to do this. Tried googling for more than hour, but I don't know what the ID will be (to identify position where to add the string), thats PHP value and I cant pass it to external script file, so I tried to find if I can insert something at specific position (ie.: 15th character from start) with JS, but could not find anything.
Thanks.
I separate some functions in order to keep the code clean check this I think that is what you were looking for JsFiddle
var generateUrl = function(id,colorScheme) {
var baseUrl = "http://my.url/embed/?";
var url = baseUrl.concat("r="+id);
if (colorScheme != null && colorScheme != '')
url = url.concat("&scheme="+colorScheme);
return url;
};
var changeUrl = function(id, colorScheme) {
var url = generateUrl(id, colorScheme);
var srcPattern = "src='(.*?)'";
var embedText = $("#embed-text").val();
var newEmbedText = embedText.replace(new RegExp(srcPattern),"src='"+url+"'");
$("#embed-text").val(newEmbedText);
};
var changeWidth = function(newWidth) {
var widthPattern = "width='([0-9]*)'";
var embedText = $("#embed-text").val();
var newEmbedText = embedText.replace(new RegExp(widthPattern),"width='"+newWidth+"'");
$("#embed-text").val(newEmbedText);
};
var getURLParameter = function(url,parameterName) {
return decodeURIComponent((new RegExp('[?|&]' + parameterName + '=' + '([^&;]+?)(&|#|;|$)').exec(url)||[,""])[1].replace(/\+/g, '%20'))||null
};
var getId = function() {
var urlPattern = "src='(.*?)'";
var embedText = $("#embed-text").val();
var url = embedText.match(new RegExp(urlPattern))[1];
var id = getURLParameter(url, 'r');
return id;
};
$("#width").on("change keyup", function(){
var width = $(this).val();
var colorScheme = $(schemes).val();
changeWidth(width);
changeUrl(getId(),colorScheme);
});
And i removed the value '-' for the first option just leave it in blank.

Having trouble appending javascript into my html

OK,so I am trying to pull some data from an api. The problem that I have run into is that I am able to find out the information that I am looking for, but am having trouble getting that information out of the console and onto my main index.html page.
Here is my JS code
var form = $('#search');
var input = $('#search-keyword');
var results = $('#results');
$(document).ready(function() {
$("#myBtn").on('click', function() {
var symbol = $("#search-keyword").val();
$.getJSON("http://dev.markitondemand.com/Api/v2/quote/jsonp?symbol=" + symbol + "&callback=?", function(info) {
console.log(info);
});
});
});
Here is my html code
<div id="search">
<h1>API Test</h1>
<input type="search" id="search-keyword">
<button id="myBtn">Try it</button>
</div>
<div id="results"></div>
By doing this, I am able to get pretty much what I am looking for. However I cannot get the data from the console to the actual page.
I have tried appendChild
var bob = document.getElementById(results);
var content = document.createTextNode(info);
bob.appendChild(info);
I have tried innerHTML
var theDiv = document.getElementById(results);
theDiv.innerHTML += info;
..and I have tried .append()
$('#myBtn').click(function() {
$(results).append(info)
})
I'm out of ideas. I realize that I probably have a small problem somewhere else that I am not seeing that is probably the root of this. Much thanks to anyone who can help me with this issue.
"results" needs to be in quotes with regular javascript and for jquery you have already decalred the results variable.
var theDiv = document.getElementById("results");
theDiv.innerHTML += info;
$('#myBtn').click(function(){
results.append(info)
})
Also since you are declaring results outside of your document ready call you have to make sure you html comes before the javascript.
<script>
var form = $('#search');
var input = $('#search-keyword');
var results = $('#results');
$(document).ready(function() {
$("#myBtn").on('click', function() {
var symbol = $("#search-keyword").val();
var resultedData = $.getJSON("http://dev.markitondemand.com/Api/v2/quote/jsonp?symbol=" + symbol + "&callback=?", function(info) {
return info;
});
var resultDiv = document.getElementById("results");
resultDiv.innerHTML += resultedData;
});
});
</script>

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