I just started learning AngularJs So sorry for dump question. I have requirement to validate the field which will start with number and end with 'M' character eg:- 10M, 5M, 200M etc. please any one help me how to do it in angular js.
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Add some relevant code.Muthukannan Kanniappan– Muthukannan Kanniappan2016-07-15 07:05:10 +00:00Commented Jul 15, 2016 at 7:05
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3 Answers
You can use ng-pattern in your input field e.g.
<input type="text" ng-model="model" id="input" name="input" ng-pattern="regex" />
and in your controller define regex as
$scope.regex = '\\d+M';
And you can check in your html, if input is valid or not like this:
input valid? = <code>{{form.input.$valid}}</code>
This will work well with ng-messages directive for form validation.
Comments
You can use the ngPattern directive to validate by matching a regular expression:
Angular docs: ngPattern directive
The pattern you need is \d+M (a sequence of 1..n digits, followed by an 'M'), you can try it out on the page I linked.
Comments
AngularJS provide a usefull directive ng-pattern that you can apply on an input.
For your problem, you can use this code :
<input type="text" ng-pattern="/^\d+[M]$/" ng-model="model" id="input" />
Explanation
/d means digits only
+ means at least one
[M] means M characters only
