I am trying to use a regular expression to validate an email address. It does not seem to be doing any validation at all. When I load the page the Submit button is disabled because of the $pristine but as soon as I type a letter the button becomes enabled. Also I am aware that the regex is only accepting upper-case at the moment. The following code is my form:
<form name="myForm" ng-hide="email" >
Insert Email : <br/>
<input type="text" name="email" ng-pattern="/^[A-Z0-9._%+-]+#[A-Z0-9.-]+\\.[A-Z]
{2,4}$/" ng-model="insert_email" required>
<br/>
<button ng-hide="email"
type="submit"
ng-disabled="myForm.email.$pristine || myForm.email.$invalid">Submit</button>
</form>
I am not sure but I think the problem may lie with the regex itself.
take out the email in myForm.email.$pristine and in myForm.email.$invalid
to look like:
myForm.$pristine
and
myForm.$invalid
also try with ng-required instead of required
It seems to be two things. It looks like the ng-pattern expects an expression instead of a string attribute.
So you need to wrap it in a string if you want to use an inline expression.
Like so:
ng-pattern="'^[A-Z0-9._%+-]+#[A-Z0-9.-]+\\.[A-Z]{2,4}$'"
Also, there seems to be some issues with your regex. I changed it to this:
ng-pattern="'^[a-zA-Z0-9._%+-]+#[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$'"
It seems to work.
Plunker Demo
I have an input field. When I click on this input field and write something then it will show all the suggested words that I want.
Like: If I write 'c' then it will show suggested words that i declared 'C#','Code','C++'
HTML:
<input type="text" class="input_field" />
How can I do it using JavaScript? Thank you.
Please refer for the auto complete http://jqueryui.com/autocomplete/
You may try following. It is my favourite at least.
Twitter Typeahead JS
I'm trying to multiple a value x months.
In the input value i'm using this Jquery Plugin to do the currency mask.
But, the operations doesn't work with the plugin. I want to multiply the value, including cents.
JSFIDDLE
<div ng-app>
Months: <input type="text" ng-model="months"><br/>
Value:<input type="text" class="mony" ng-model="value"><br/>
Total: <input type="text" disabled="true" value="{{months*value | currency}}">
</div>
In your case the value becomes formatted string that is not understood as a number.
So multiplication does not work.
In Angular it is discouraged to use jQuery to modify DOM, all modifications should be done from Directives.
So the best solution is to find the formater directive or create your own. Just search for something like "angularjs mask input".
Or maybe you can create controller and one of its methods will parse your string back into Number. If you still want to stick with jQuery without directive.
I have some form fields where I only want to allow letters for them to be ('ng-valid'). I have it like the following:
<input type="text" ng-model="Example.field1" ng-pattern="/[a-zA-Z]/" />
It works correctly if you only type in letters, or only type in non-letters, but if they are mixed it won't mark the field as invalid. Can someone tell me why this would be happening? Thanks in advance.
Try this pattern
/^([A-Za-z]+)$/
Right now you are saying that you want one character anywhere in the string.
Is there a way to validate a field in angular without using a directive?
For example: I want to make following validation on an input field.
If field is empty we should show "Field must contain a value" message.
if field contains alpha Numeric characters we should show "Field can contain only digits".
An EVEN number - message to the user "Value must be an even number".
I want to make following validation in a call to JavaScript function.
I googled around and saw that there is a way to use ng-valid and $error , however I was not managed to make it work.
Code below is according to one of the answers I got:
<div ng-app>
<form name='theForm' novalidate>
<input type='text' name='theText' ng-model='theText' ng-pattern='/^[0-9]+$/'/>
<span ng-show='theForm.theText.$error.pattern'>Field can contain only digits</span>
<span ng-show='theText.length<1'>Field must contain a value</span>
<span ng-show='theText%2!=0&&document.getElementsByName("theText").value!=""&&!theForm.theText.$error.pattern&&!theForm.theText.$pristine'>Value must be an even number</span>
<br/><input type='submit' value='Submit' />
</form>
I want to take what inside the last [span] and put inside a JavaScript function in order to make it more generic and eventually change only JS and not the HTML when conditions are changing
Can someone please advise? a working example would be great.
I'm surprised no one has mentioned ui-validate
$scope.isOdd = function($value){
return $value % 2;
}
...
<form name="myform">
<input ng-model="myVal" name="value" required
ng-pattern="/^[0-9]*$/" ui-validate=" 'isOdd($value)' "></input>
<pre>{{myform.value.$error|json}}</pre>
</form>
Doesn't get any simpler than that, and it's PROPER AngularJS validation (not silly watches)
Here's a working demo
Take a look at the angularjs form documentation - http://docs.angularjs.org/guide/forms . In general, it is based on the HTML5 attributes like required, min, max, etc.
To get, for example, your first requirement done - "an empty field should show "Field must contain a value" message, yo uwould do something like that:
<input type="text" ng-model="user.name" name="uName" required /><br />
<div ng-show="form.uName.$invalid">
<span ng-show="form.uName.$error.required">Field must contain a value.</span>
</div>
For digits only field you can use the pattern attribute with a matching regular expression (example: http://www.wufoo.com/html5/attributes/10-pattern.html).
For even number validation, I'm not sure - I think you'd have to go with custom validation for that (meaning you'd have to create a directive) or use the pattern attribute somehow.
Last but not least - remember to add novalidate to the <form> tag. Otherwise the browser will try to validate your fields as well and you don't want that:
<form ... novalidate>
...
</form>
I know the question is old and I know you didn't want a directive but you may consider using a directive if it's "Angular" way... Well here is my Angular-Validation. I made a project on Github and I think that it just rocks compare to whatever is/was available...I based myself on the excellent Laravel PHP Framework and made it available under Angular... It is so crazy simple, you need 2 lines 1 line of code, 1 line for the input, 1 line for error display, that's it... never more and never less!!! Enough said, let's give some examples:
<!-- example 1 -->
<label for="input1">Email</label>
<input type="text" validation="email|min_len:3|max_len:25|required" ng-model="form1.input1" name="input1" />
<!-- example 2 -->
<label for="input2">Alphanumeric + Exact(3) + required</label>
<input type="text" validation="alpha|exact_len:3|required" ng-model="form1.input2" name="input2" />
So I can define whatever amount of validation rules (already 25+ type of validators) which I want in a simple directive validation="min_len:2|max_len:10|required|integer" and the error message will always display in the next <span> Don't you guys like it already? 1 line of code for your input, 1 line of code for the error display, you can't be simpler than that...oh and I even support your custom Regex if you want to add. Another bonus, I also support whichever trigger event you want, most common are probably onblur and onkeyup. Oh and I also support multiple localization languages via JSON external files. I really added all the imaginable features I wanted into 1 crazy simple directive.
No more clustered Form with 10 lines of code for 1 input (sorry but always found that a little extreme) when the only thing you need is 2 lines, no more, even for an input with 5 validators on it. And no worries about the form not becoming invalid, I took care of that as well, it's all handled the good "Angular" way.
Take a look at my Github project Angular-Validation... I'm sure you'll love it =)
UPDATE
Another candy bonus! To make an even more smoother user experience, I added validation on timer. The concept is simple, don't bother the user while he's typing but do validate if he makes a pause or change input (onBlur)... Love it!!!
You can even customize the timer as per your liking, I've decided to default it to 1 second within the directive but if you want to customize you can call as for example typing-limit="5000" to make a 5 sec. timeout. Full example:
<input type="text" ng-model="form1.input1" typing-limit="5000" validation="integer|required" name="input1" />
<span class="validation text-danger"></span>
UPDATE #2
Also added input match confirmation validation (ex.: password confirmation), here is a sample code
<!-- input match confirmation, as for example: password confirmation -->
<label for="input4">Password</label>
<input type="password" name="input4" ng-model="form1.input4" validation="alpha|min_len:4|required" />
<label for="input4c">Password Confirmation</label>
<input type="password" name="input4c" ng-model="form1.input4c" validation="match:form1.input4,Password|required" />
UPDATE #3
Refactored the directive so that the requirement of having a <span> to display the error is unnecessary, the directive now handles it by itself, see the code change reflected on top.
DEMO
Added a live demo on Plunker
Well you can try to create a func
<span ng-show='isEven(theText)'>Value must be an even number</span>
$scope.isEven=function(data) {
if(data) {
return data%2===0
}
return true;
}
The method can either be defined on the current controller scope or on $rootScope.
Not a very angular way, as directives would be better but i think it would work.