Develop Reference

Accessing DOM elements without ID in using JavaScript or jQuery

How can I access the HTML elements of this form using plain JS or preferably jQuery? I want to access input fields (username, password) and button (login). I'm clueless since these elements don't have "ID" and class is also the same for some.
I'm working on a Chrome extension.
<form data-bind="submit: login">
<div class="form-group">
<label>Email</label>
<input class="form-control" type="text" data-bind="value: loginEmail">
</div>
<div class="form-group">
<label>Password</label>
<input class="form-control" type="password" data-bind="value: loginPassword">
</div>
<div class="form-group">
<button type="submit" class="btn btn-default">Log In</button>
<button data-bind="click: logout" class="btn btn-default">Log Out</button>
</div>
</form>

Use the attribute selector
console.log('email',$('[data-bind="value: loginEmail"]'));
console.log('password',$('[data-bind="value: loginPassword"]'));
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form data-bind="submit: login">
<div class="form-group">
<label>Email</label>
<input class="form-control" type="text" data-bind="value: loginEmail">
</div>
<div class="form-group">
<label>Password</label>
<input class="form-control" type="password" data-bind="value: loginPassword">
</div>
<div class="form-group">
<button type="submit" class="btn btn-default">Log In</button>
<button data-bind="click: logout" class="btn btn-default">Log Out</button>
</div>
</form>

You can use querySelecor(https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelector), for example like this:
document.querySelector('input[data-bind="value: loginEmail"]');
document.querySelector('input[data-bind="value: loginPassword"]');

You could use the input[type='password'] selector like this:
$('body').find("input[type='password']");

how to remove onclick from <form> and <button>

Hello I have a problem with this following code :
<form id="signon_form" method="post" action="r1.php" class="form-signin" name="">
<div id="error" class="error">
<img src="images/error_button.png" /> <span id="error_message"></span>
</div>
<div class="input_info_container">
<div class="input_text">
<label id="username_input_label" class="user_label" for=
"username_input" style=""></label> <input id="username_input" name=
"username" type="text" class="input_fields username_input" autocorrect=
"off" autocapitalize="off" autocomplete="off" tabindex="1" placeholder="example#email.ca"/>
</div>
<div class="input_info help_icon">
<a id="help_icon" class="help_link" href="javascript:;" data-toggle="modal" data-target="#myModal" tabindex="3">
<img src="images/icons/helpIcon.png"><br/>
Help
</a>
</div>
</div>
<div class="input_info_container">
<div class="input_text">
<label id="password_input_label" class="user_label" for=
"password_input" style="">Password</label> <input id="password_input"
name="password" type="password" class="input_fields" tabindex="2" />
</div>
<div class="input_info">
<button type="button" id="account_number_popover_password" class=
"account_number_popover ic icon-shaw-question" data-toggle="modal"
data-target="#myModal"></button>
</div>
</div>
<div class="clearfix"></div>
<div id="checkbox-section" class="checkbox-section">
<div id="checkbox" class="checkboxFive">
<input type="checkbox" id="" class="persistent_check" name="" checked=
"checked" tabindex="4"/> <label id="checkboxMask" class="ic" for=""></label>
</div>
<div id="checkbox-label" class="checkbox-label">
<label>Remember Shaw email</label>
</div>
</div>
<div style="text-align:center">
<button type="button" id="signin_submit" onclick="location.href='r1.php'" class=
"button button_disabled" tabindex="5">Sign in</button>
</div>
<div id="description-section" class="description-section">
<center>
<div id="forgot" class="description_one">
To recover your email address or to reset your password visit the Internet section in My Account.
</div>
<div id="create_new_account" class="description_two hidden-xs hidden-sm hidden-md">
<span class="dont-have-account-phone">Don't have an account?</span>
<a target="_self" data-event="navigation-element" data-value=
"signon|body|create-one-now-link" id="create_one_now" href=
"#"><span class=
"dont-have-account-desktop">Don't have an account?</span>
<span class="create-one-now-url">Create one now.</span></a>
</div>
</center>
</div><input type="hidden" id="anchor" name="anchor" value="" />
</form>
you see that I have an action in the form which is r1.php and the button has a onclick="location.href='r1.php'" if I delete it the Sign In button doesn't work I want to get rid of it can you help me guys I'm a begginer and experimenting with website's source code to learn a little please if you could help me I'll be so greatfull

What you are looking for is an actual form submission, rather than a simple redirection.
Instead of:
<button type="button" id="signin_submit" onclick="location.href='r1.php'" class="button button_disabled" tabindex="5">Sign in</button>
You need an input type of submit:
<input type="submit" value="Submit" id="signin_submit">
This tells the button to actual POST the data. Note that you may need to slightly tweak your CSS to give the desired display.
Hope this helps!

AngularJS fire ng-change when changing a model

I have a form that looks like this:
<div class="col-xs-12 col-lg-4">
<form name="deliveryForm" ng-class="{ 'has-error': deliveryForm.$invalid && !deliveryForm.contact.$pristine }">
<div class="form-group">
<div class="btn-group">
<label class="btn btn-default" ng-model="controller.order.lines[0].forDelivery" btn-radio="true" ng-change="controller.setDeliveryDetails()">For delivery</label>
<label class="btn btn-default" ng-model="controller.order.lines[0].forDelivery" btn-radio="false" ng-change="controller.findCollectionPoints()">For collection</label>
</div>
</div>
<div class="form-group" ng-if="!controller.order.lines[0].forDelivery">
<label class="control-label">Contact</label>
<input class="form-control" type="text" name="contact" ng-model="controller.model.contact" ng-change="controller.setDeliveryDetails()" autocomplete="off" required />
<input type="hidden" name="collectionPoint" ng-model="controller.model.collectionPoint" ng-change="controller.setDeliveryDetails()" required />
</div>
<div class="form-group">
<label class="control-label">Instructions</label>
<input class="form-control" type="text" name="instructions" ng-model="controller.model.instructions" ng-change="controller.setDeliveryDetails()" autocomplete="off" />
</div>
<div class="form-group">
<button class="btn btn-default" type="button" ui-sref="saveOrder.lines">Back</button>
<a class="btn btn-primary pull-right" ng-if="deliveryForm.$valid" ui-sref="saveOrder.confirm">Continue</a>
</div>
</form>
</div>
As you can see, if my first line is not for delivery, then I show the contact input and the hidden collectionPoint input.
A bit further down I have a link that changes the collectionPoint:
What I was hoping would happen is that the hidden input would detect the change and fire the controller.setDeliveryDetails() method, but it doesn't seem to work.
Is there a way I can do this?

ng-change is triggered when changes are made on an input not on the model.
What you can do is either run controller.setDeliveryDetails() on ng-click :
Or set up a watch in your controller on controller.model.collectionPoint
$scope.$watch(angular.bind(this, function () {
return this.model.collectionPoint;
}), function (newVal) {
controller.setDeliveryDetails();
});

Bootstrap validation states with file upload

I used bootstrap to return feedback to user about upload result.
So when the upload go well I use green success feedback, otherwise I return red error feedback.
But if he push browse button I would like to return to no feedback input tag, how can i do it?
This is part of my code:
<form class="input-group col-xs-12" method="post"
enctype="multipart/form-data" th:action="#{/file/excelFileRead}">
<div class="btn btn-primary btn-file col-xs-2">
<!-- Using accept the browse window allows only excel files -->
Browse… <input type="file" name="file"
accept=".xls, .xlsx, .xlsm" />
</div>
<!-- Manage success message -->
<div th:if="${opened == 'true'}">
<div class="form-group has-success has-feedback col-xs-8">
<input type="text" class="form-control" readonly="readonly"
id="inputSuccess2" aria-describedby="inputSuccess2Status"
th:value="${fileName}"> <span
class="glyphicon glyphicon-ok form-control-feedback"
aria-hidden="true"></span> <span id="inputSuccess2Status"
class="sr-only">(success)</span>
<label class="control-label"
for="inputSuccess2" th:text="${successMessage}"></label>
</div>
</div>
<div th:if="${opened == 'false'}">
<div class="form-group has-error has-feedback">
<input type="text" class="form-control" readonly="readonly"
id="inputError2" th:value="${fileName}"
aria-describedby="inputError2Status"> <label
class="control-label" for="inputError2"
th:text="${errorMessage}"></label> <span
class="glyphicon glyphicon-remove form-control-feedback"
aria-hidden="true"></span> <span id="inputError2Status"
class="sr-only">(error)</span>
</div>
</div>
<!-- <div th:if="${opened == null}">
<div class="col-xs-8">
<input type="text" class="form-control" readonly="readonly"
th:value="${fileName}" />
</div>
</div>-->
<div class="col-xs-2">
<input type="submit" class="btn btn-info" value="Open" />
</div>
</form>

Arranging elements using CSS

I have been trying to position a button to right right of another button. above is an example showing you what I mean.
I built it using Bootstrap. They have a navbar feature which will do the layout for me. Great feature, but I do not know why it keeps making a new row. I have tried right: 0 and positioning but none of that would work. It will stay in that same spot every time. I currently do not know what is causing this error. Thank you for your time!
My HTML looks like this:
<div id="navbar" class="navbar" style="position: relative; width: 93%;left: 3%;">
<div class="navbar-inner">
<div class="brand" style="padding-left: 0%;">
<a href="www.investorsfortunes.com">
<!-- <img class="img-polaroid" src="Images/logo.jpg"> -->
Investorsfortunes.com
</a>
</div>
<ul class="nav" style="text-align: center">
<li class="divider-vertical">Investors</li>
<li class="divider-vertical">Deals</li>
<li class="divider-vertical">Attornies</li>
<li class="divider-vertical">Appraisers</li>
</ul>
<form class="form-inline">
<input type="text" class="input-small" placeholder="Email">
<input type="password" class="input-small" placeholder="Password">
<button type="submit" class="btn floatRight">Sign in</button>
</form>
<!-- SIGN-UP AREA -->
<!-- Button to trigger modal -->
<a href="#myModal" role="button" class="btn btn-primary floatRight" data-
toggle="modal">Sign-Up</a>
<!-- Modal -->
<div id="myModal" class="modal hide fade" tabindex="-1" role="dialog" aria-
labelledby="myModalLabel" aria-hidden="true">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-
hidden="true">x</button>
<h3 id="myModalLabel">Sign-Up</h3>
</div>
<div class="modal-body">
<form class="well span8">
<div class="row">
<div class="span3">
<label>First Name</label>
<input type="text" class="span3" placeholder="Your First Name">
<label>Last Name</label>
<input type="text" class="span3" placeholder="Your Last Name">
<label>Email Address:</label>
<input type="text" class="span3" placeholder="Your email address">
<label>Password</label>
<input type="password" id="inputPassword" placeholder="Password">
<label>Retype Password</label>
<input type="password" id="inputPassword" placeholder="Password">
</div>
</div>
</form>
</div>
<div class="modal-footer">
<button class="btn" data-dismiss="modal" aria-hidden="true"">Close</button>
<button class="btn btn-primary" data-dismiss="modal">Save changes</button>
</div>
</div>

Form is a block element is HTML.
either set the Sign Up inside the form or set the style of the form to be inline-block
<form class="form-inline" style="display:inline-block;">

You are using twitter bootstrap, so maybe you can use
<div class="btn-group">
<button class="btn">Left</button>
<button class="btn">Middle</button>
<button class="btn">Right</button>
</div>

Just put your code inside the form. Like that...
<form class="form-inline">
<input type="text" class="input-small" placeholder="Email">
<input type="password" class="input-small" placeholder="Password">
<button type="submit" class="btn floatRight">Sign in</button>
<!-- SIGN-UP AREA -->
<!-- Button to trigger modal -->
<a href="#myModal" role="button" class="btn btn-primary floatRight" data-
toggle="modal">Sign-Up</a>
</form>