Develop Reference

Why is my dynamic src path not working unless I append an empty string to the end of it?

I'm using Vue.js and tried to create a dynamic src using an object's properties like this:
<img :src='"../assets/" + project.image.name + "." + project.image.extension'>
But it doesn't work and I don't get any errors in the console. Interestingly, when I try this:
<img :src='"../assets/" + project.image.name + "." + project.image.extension + ""'>
It works just fine. I'm not doing anything else than appending an empty string to the end of it. Even though it works fine, it irks me that I don't understand why.

Actually even the second shouldn't work.
Proper way is
computed: {
src() {
return require("./assets/" + this.image.name + "." + this.image.extension);
}
},
// <img :src="src">

Calling function from c# to JS File

I am using an inline jquery in the c# code and it works. But when I try to call it through js file, it does not work.
C# code
tableCell.Attributes.Add("onclick",
#" if($(""div[id*='Name'] input[id*='" +
checkboxID + #"']"").is(':checked')" );
Here, I get the value true. So Now I try to make a function in js file and call it.
tableCell.Attributes.Add("onclick",
"javascript:Foo(this,'" + checkBoxID + "');
return false;");
Js File :
function ToggleScorecardConfig(sender,checkboxID) {
var a = checkboxID + "#";
alert(a); //WORKS
alert($(""div[id*='Name'] input[id*='" + checkBoxID +
#"']"").is(':checked')); //ERROR : ')' Expected
}
I know I am doing some very small mistake, Can anyone please guide me.

You have double double quotes in the JS file code, should just be:
$("div[id*='Name'] input[id*='" + checkBoxID + "']")
The '#' is used to escape the double quotes in C#, that's why the in-line code works, you don't need that in JS

How to pass multiple parameter to a function

I am using onclick event to perform some acction, but for som reason the second ID is not being passed what am I doing wrong here:
row += '<td>' + data[staff].Naame + '(' + data[staff].place1 + 'fID="' + data[staff].id+ '"' +')</td>'
$(document).on("click", ".name", function (e) {
var code = ($(this).attr("code"))
var fID = ($(this).attr("fID"))
function(code, fID);
});
For some reason fID is not being passed from 'fID="' + data[staff].id+ '"' to function(code, fID); why is that?

Avoid using loads of string concatenation in jQuery, to create elements, as it is generally unreadable and leads to typing mistakes (like not putting the fId inside the tag attributes):
Instead build the element with jQuery. I am not 100% sure of what your link should look like from the code, but something like this (tweak to suit):
var $td = $('<td>').html(data[staff].Naame);
$td.append($('<a>', {class: 'name', code: data[staff].place, fId: data[staff].id}).html(data[staff].place1));
row.append($td);

I think you need to define fID within the <a ... > tag - like you are doing for code.
ie:
...

Try this.
row += '<td>' + data[staff].Naame + ''+data[staff].place1+'</td>'

jQuery: trying hook a function to the onclick when page loads

I have seen a similar question, HERE and have tried that, but I can't seem to get it working.
Here is my code for dynamically generating table rows.
for (var contribution = 0; contribution < candidate.contributions.length - 1; contribution++) {
var id = candidate.contributions[contribution].donor_id;
var uid = candidate.contributions[contribution].user_id;
$("#history-table").append(
"<tr onclick='" + parent.viewEngine.pageChange('public-profile', 1, id, uid) + ";>" +
"<td class='img-cell'>" +
"<img class='profile-avatar-small' src='/uploads/profile-pictures/" +
candidate.contributions[contribution].image + "' alt='' /></td><td class=''>" +
"<h2>" + candidate.contributions[contribution].firstname +
" " + candidate.contributions[contribution].lastname + "</h2></a><br/><br/>" +
"<span class='contribution-description'>" + candidate.contributions[contribution].contribution_description + "</span></td>" +
"<td><h3>$" + formatCurrency(candidate.contributions[contribution].contribution_amount) + "</h3></td></tr>");
}
This still executes the click event as soon as the page loads, which is not the desired behavior. I need to be able to click the tr to execute the click event.

Pass the whole thing as a string:
"<tr onclick='parent.viewEngine.pageChange(\'public-profile\', 1, " + id + ", " + uid + ");>" // + (...)
But, as you are using jQuery, you should be attaching the click handler with .on().

(I really don't recommend using inline event handlers like that, especially when you're already using jQuery, but anyway...)
The problem is that you need the name of the function to end up in the string that you are passing to .append(), but you are simply calling the function and appending the result. Try this:
...
"<tr onclick='parent.viewEngine.pageChange(\"public-profile\", 1, " + id + "," + uid + ");'>" +
...
This creates a string that includes the name of the function and the first couple of parameters, but then adds the values of the id and uid variables from the current loop iteration such that the full string includes the appropriately formatted function name and parameters.
Note that the quotation marks around "public-profile" were single quotes but that wouldn't work because you've also used single quotes for your onclick='...', so you should use double-quotes but they need to be escaped because the entire string is in double-quotes.

I'm wondering if you might be better simplifying things a bit.
If your rows are being dynamically added, then try putting some kind of meta-data in the <tr> tag, e.g. something like this:
<tr id="id" name="uid">
Then try the following with your jQuery (v.1.7 required):
$('#history-table tr').on('click', function(){
parent.viewEngine.pageChange('public-profile', 1, this.id, this.name);
});
This will likely require modification depending on how your page rendering works but it's a lot cleaner and easier to read having been removed from your main table markup.

Well that's because you're executing the function, not concatenating it. Try:
onclick='parent.viewEngine.pageChange("public-profile", 1, id, uid);'

Take this ->
$("#contribution-" + uid).click(function(){
parent.viewEngine.pageChange('public-profile',1, id, uid);
});
And do two things:
1) Move it outside of the 'for' statement
As soon as the for statement is executed, the click function will be executed as well. The click function is not being supplied as a callback function in this for statement.
2) Change it to ->
$("tr[id^='contribution-'").on('click', function(){
var idString = $(this).attr("id").split("-"); //split the ID string on every hyphen
var uid = idString[1]; //our UID sits on the otherside of the hyphen, so we use [1] to selec it
//our UID will now be what we need. we also apply our click function to every anchor element that has an id beginning with 'contribution-'. should do the trick.
parent.viewEngine.pageChange('public-profile',1, id, uid);
});
This is my solution.

how do i create a hard return or new line in javascript

I have the following code snipet:
document.getElementById('PS_FORM/SUBJECT_PROPERTY/Business_Comments').value = com_textcl + "\n" ;
document.getElementById('PS_FORM/SUBJECT_PROPERTY/Business_Comments').value = com_text;
I want each of the values to be in their own line. Is there a way to get this done??
Thanks

Assuming that element (PS_FORM/SUBJECT_PROPERTY/Business_Comments) is a textarea, then the JS should be:
document.getElementById('PS_FORM/SUBJECT_PROPERTY/Business_Comments').value=
com_textcl + "\n" + com_text;
If it's a SELECT the code would be different (update your question).
If it's a div or some other HTML element (rather than a FORM element) then the code would be more like:
document.getElementById('PS_FORM/SUBJECT_PROPERTY/Business_Comments').innerHTML=
com_textcl + "<br />\n" + com_text;