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How to change default “please include an # in the email address”?

I am trying to change the default error message "setCustomValidity" throws on email being invalid.
I cannot access the source code. My assumption is that the source somehow invokes setCustomValidity; just because of the look of the error message. This is the source element:
<input type="email" value="" name="customer[email]" id="email" class="large" size="30">
I can only inject any change using external JavaScript/css file.
I could think of two solutions.
Solution 1: I am trying to inject inline HTML element using JS which would result in something like this.
<input type="email" value="" name="customer[email]" class="large" size="30" oninvalid="this.setCustomValidity('Please Enter valid email')" oninput="setCustomValidity('')">
I am new to JS and I am having a hard time figuring how to implement HTML in an external JS file.
Solution 2: Invoke the oninvalid and setCustomValidity DOM methods in error_message.js like so:
function emailValidity(){
var myInput = document.getElementByName("customer[email]");
myInput.oninvalid = function() {
(errorMessage)
};
function errorMessage(){
myInput.setCustomValidity("hey! the email isn't right");
}
}
But this file even after being included somehow fails to override the default message!
Any help is appreciated. Thank you in advance.

Additionally you must call the reportValidity method on the same element or nothing will happen.
HTMLObjectElement.setCustomValidity
function validate(input) {
var validityState_object = input.validity;
console.log(validityState_object)
if (validityState_object.typeMismatch) {
input.setCustomValidity('Thats not an email!');
input.reportValidity();
} else {
input.setCustomValidity('');
input.reportValidity();
}
}
document.querySelector('#email').addEventListener('blur', e =>
validate(e.target)
)
<input type="email" value="" id="email">

Just set the input and invalid event listeners in much the same way.
const input = document.querySelector('input');
input.oninput = () => input.setCustomValidity('');
input.oninvalid = () => input.setCustomValidity('Please Enter valid email');
<form>
<input type="email" value="" name="customer[email]" class="large" size="30">
</form>

Your code wasn't working because it wasn't in a form. A form needs a submit button to check the inputs and display an error message if necessary, so I added that.
Also, you have getElementByName when it should be getElementsByName, with a later on [0] indexing to select the element.
In addition to that, you were trying to set the validity every time the user tried to submit, when it only needed to be set once.
Try this:
var myInput = document.getElementsByName("customer[email]")[0];
myInput.oninvalid = function() {
myInput.setCustomValidity("Hey! the email isn't right")
};
<form>
<input type="email" name="customer[email]" id="email" class="large" size="30">
<input type="submit" onsubmit="emailValidity()">
</form>

This is how I solved it:
customAnswer.js
document.addEventListener("DOMContentLoaded", function(event) {
// Source text: "Fill out this field."
var validateElements1 = document.querySelectorAll('input#username, input#password');
if (validateElements1.length > 0) {
for (var x = 0; x < validateElements1.length; x++) {
validateElements1[x].setAttribute("oninvalid","this.setCustomValidity('Complete este campo.')");
validateElements1[x].setAttribute("oninput","this.setCustomValidity('')");
}
}
});

Save form data in browser session

I have an div that is shown when a form is submitted, but when I refresh the page, my data disappears and I'm searching for a way to preserve my data on page refresh.
I know how to save data in a session, but not an entire form. How do I approach this issue? Is it even possible to save an entire form with Javascript?
function showHide() {
var div = document.getElementById("hidden_form");
if (div.style.display == 'none') {
div.style.display = '';
} else {
div.style.display = 'none';
}
}
<form name="product_form" id="product_form" enctype="multipart/form-data" action="admin_products.php" method="post" accept-charset="utf-8" onsubmit="showHide();
return false;">
<input type="textfield" id="title" name="title" value="" readonly>
<div id='hidden_form' style="display:none">
<input type="text" id="name" name="name" value="" placeholder="Product Name">
<label id="option_1" name="option_1">Option Name</label>
<input type="text" id="optionn" name="optionn" value="" placeholder="Product Name">
</div>
<input type="submit" id="add" name="add" value="Save" class="" <!--onclick="myFunction()-->">

When you hit submit, you'll reload the page and lose your data. By using localStorage and JSON.stringify() you are able to save the data locally in your browser and fetch it when you load your page.
Since localStoragecan only store strings, you'll have to convert your object to a string. That's where JSON.stringify() comes into play. And when you fetch it, you can use JSON.parse() to convert it back to an object.
$("#btnSubmit").click(function() {
var data = {};
data.Text = $("#myText").val();
data.isProcessed = false;
localStorage.setItem("myData", JSON.stringify(data));
});
//On load
var data = localStorage.getItem("myData");
var dataObject;
if (data != null) //There's stored data
{
dataObject = JSON.parse(data);
$("#myText").val(dataObject.Text)
localStorage.removeItem("myData"); //Remove data, otherwise it'll be there for a long time.
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
<form method="post">
<input type="text" id="myText" />
<button type="submit" id="btnSubmit">Submit</button>
</form>
</div>
More information on localStorage: W3Schools
More information on JSON.stringify and JSON.parse: MDN
I don't know if the snippet will work, since it'll submit a post. Copy this snippet and try it on your local system.
EDIT
As I made a tiny mistake myself, I updated my snippet. But as I suspected, SO doesn't allow access to localStorage.
And ofcourse, you'll have to put this code in your $(document.ready(function() { ... }); for it to work. I did forget to add a <form></form> to my HTML snippet. And I just tested it on my local system and it's working fine.

You can try with localStorage. It's key-value storage that all modern browsers have. There're simple libraries to write to localStorage with fallback to cookies if you need old browser support (written by javascript instead of server side scripts).
I'll give you an example with localStorage:
//emulating that the form was showed (save clicked) and the value true stored on the localStorage
localStorage.setItem('displayedForm', true);
//initializing the state of the page
initialize();
function showHide() {
var div = document.getElementById("hidden_form");
if (div.style.display == 'none') {
div.style.display = '';
localStorage.setItem('displayedForm', true);//if the conditions are meet to display the form, store it on the localStorage
} else {
div.style.display = 'none';
localStorage.setItem('displayedForm', false);//if the conditions are **NOT** meet to display the form, store it on the localStorage as well
}
}
function initialize() {
if (localStorage.getItem('displayedForm') === true || localStorage.getItem('displayedForm') === 'true') {
var div = document.getElementById("hidden_form");
div.style.display = '';
}
}
Working Fiddle: https://jsfiddle.net/y0uep73e/

Facing this problem myself, I wrote a simple library to automatically handle saving and loading form data via local storage: https://github.com/FThompson/FormPersistence.js
Example which saves data upon unload and loads data upon load:
<script src='https://cdn.jsdelivr.net/gh/FThompson/FormPersistence.js#1.0.1/form-persistence.min.js' type='text/javascript'></script>
<script type='text/javascript'>
window.addEventListener('load', () => {
let myForm = document.getElementById('my-form')
FormPersistence.persist(myForm)
})
</script>

How to disable HTML validation in React using formsy-react?

I'm trying to get rid of the browser's default validation logic using formsy-react, and according to the documentation the "formNoValidation" attribute should do the trick. But I can't get it to work.
What am I doing wrong?
var React = require('React');
var Formsy = require('formsy-react');
var Input = require('./forms/Input.js');
module.exports = React.createClass({
render: function () {
return (
<Formsy.Form>
<Input ref="phonenumber" id="phonenumber" value={this.state.phonenumber.value} name="phonenumber" required validations="isNumeric" validationError="Please provide a valid phone number" />
</Formsy.Form>
);
}
});
Input.js
var Formsy = require('formsy-react');
var React = require('React');
module.exports = React.createClass({
mixins: [Formsy.Mixin],
changeValue: function (event) {
this.setValue(event.currentTarget.value);
},
render: function () {
var className = this.showRequired() ? 'required' : this.showError() ? 'error' : null;
var isReadOnly = this.props.readOnly;
var errorMessage = this.getErrorMessage();
return (
<div className={className}>
<input type="text" onChange={this.changeValue} value={this.getValue()} readOnly={isReadOnly} required={this.isRequired()} formNoValidate />
<span>{errorMessage}</span>
</div>
);
}
});

The formNoValidate attribute is only intended for elements that submit the form. So, placing it on a "text" type of input will work if it is the only input in the form (no submit button).
Imagine having a form for writing an article, It could have two submit buttons, one for "Save draft" that doesn't need to run native validation, and one for "Publish" that does.
Adding noValidate on the form tag should disable native validation on the form completely, however this isn't possible until issue issue 89 is resolved (scheduled for the next release).

write "novalidate" in form tag.
Example
<form method="post" novalidate>...</form>
Example

To disable HTML validation, use noValidate, it`s camel case sensitve:
<form onSubmit={this.handleSubmit} noValidate>
// code
</form>

Apparently, this is a way around the problem:
<Formsy.Form>
<Input ref="phonenumber" id="phonenumber" name="phonenumber" validations="isNumeric" validationError="Oppgi et gyldig telefonnummer"/>
<input type="submit" formNoValidate value="Submit"/>
</Formsy.Form>

ng-change on <input type="file"

I am trying to run my upload() function when a file input changes. However, I can't make it work.
HTML:
<input type="file" ng-model="image" ng-change="uploadImage()">
JS:
$scope.uploadImage = function() {
console.log('Changed');
}
What am I doing wrong?

Try this out:- http://jsfiddle.net/adiioo7/fA968/
JS:-
function myCtrl($scope) {
$scope.uploadImage = function () {
console.log("Changed");
}
}
HTML:-
<div ng-app ng-controller="myCtrl">
<input type="file" ng-model="image" onchange="angular.element(this).scope().uploadImage()" />
</div>

Here's a directive I made that accomplishes what you are asking. If I'm not mistaken, I think the other solutions won't work in production mode, but this one does. It is used like so:
<input ng-upload-change="fileChanged($event)" />
In your controller:
$scope.fileChanged = function($event){
var files = $event.target.files;
}
And for the directive to include somewhere in your code:
angular.module("YOUR_APP_NAME").directive("ngUploadChange",function(){
return{
scope:{
ngUploadChange:"&"
},
link:function($scope, $element, $attrs){
$element.on("change",function(event){
$scope.$apply(function(){
$scope.ngUploadChange({$event: event})
})
})
$scope.$on("$destroy",function(){
$element.off();
});
}
}
});
This code is released into the public domain, no attributions required.
You should also be aware that if somebody selects a file, closes the file input, and then selects the same file again later on, it won't fire the change function again. To fix this, I've created a more complete directive that replaces the input under the hood each time you use it. I put it on github here:
https://github.com/dtruel/angular-file-input/tree/master

Another interesting way to listen to file input change is with a watch over the ng-model attribute of the input file.
Like this:
HTML -> <input type="file" file-model="change.fnEvidence">
JS Code ->
$scope.$watch('change.fnEvidence', function() {
alert("has changed");
});
Hope this helps.

Use ng-file-select="upload($files)"
'<input type="file" class="form-control" ng-model="alunos.file" accept="image/*" ng-file-select="upload($files)"/>'
where upload is a function:$scope.upload = function(file){
console.log(file);
};

Simulating a submit and validation to a separate form on AngularJS

How to simulate submit plus validation on a form whose button is outside of it?
It can be done with this:
HTML:
<div ng-controller="MyCtrl">
<form ng-submit="onSubmitted()">
Header inputs:
<input type="name" ng-model="sample" required/>
<input type="name" ng-model="sampleX" required/>
<div style="visibility: hidden">
<input type="submit" id="clcikMe" value="This submit triggers validation. But I wanted to put this button at the end of the page"/>
</div>
</form>
<hr/>
Some other form here. Think line items
<hr />
<a class="btn" linked="clcikMe">Wanted this submit button to trigger the validation+submit on the form in which this button doesn't belong</a>
</div>
Javascript:
var app = angular.module('myApp', []);
function MyCtrl($scope) {
$scope.onSubmitted = function() {
alert('submitted!');
};
}
app.directive("linked",function(){
return function (scope, element, attrs) {
var id = attrs["linked"];
element.on("click",function(){
document.getElementById(id).click();
});
};
});
But I wanted to stay away from that approach, it's very kludgy, it triggers a validation+submit by simulating a submit on first form by clicking its hidden submit button
Is there an API on AngularJS (or even plain javascript) that will let me achieve my objective? I.e. without using any hidden submit button

You're not thinking very Angular here. No one is forcing you to work with form ng-submit. Just use 2 buttons each with their own ng-click="runThisFunction()" or simply use the same function and pass along a parameter. i.e:
<button ng-click="submitForm(true)">Validate + Submit</button>
and
<button ng-click="submitForm(false)">Only Validate</button>
Then in your controller:
$scope.submitForm = function(shouldSubmit) {
//run validation here.
//either using $scope.form.name.$valid or ng-model $scope variable
var dataGood = false;
if ($scope.sample === "goodData" && $scope.sample === "alsoGoodData" ) {
//data is good
dataGood = true;
//alert user that data is good!
alert('good job, your data is great!');
}
else {
//data is bad
alert (' data bad, dear padowan');
}
if (!shouldSubmit) return;
//perform $http request to server, or navigate to a different page or whatever
if (dataGood) {
//submit data to server and let the party begin
$http.post('/api/rocknroll/submit', { sample: $scope.sample, sampleX: $scope.sampleX}).then( $scope.handleResponse);
}
}
This will work whether or not you're in the scope of the form, but you need to be in the scope of the controller.