Tips for modifying the max length value in Angular

Question

Tips for modifying the max length value in Angular

I'm just starting out with Angular and I'm trying to alter the maxlength property from 300 to 140 upon clicking a button. The buttons are generated using ng-repeat and only the first one should change the value to 140, while the others should remain at 300.

Here is the code snippet from my controller:

//character counter
$scope.counter = function() {
    var element = angular.element(document.querySelector('.form-control'));
    element.attr('maxlength', '150');
};

And this is the relevant HTML:

<textarea data-ng-model="view.post.content" ng-trim="false" maxlength="340" class="form-control" style="height: 100px;"></textarea>

angularjs maxlength

Answer 1

Answer №1

Utilize the ng-maxlength directive and bind it to a property in the scope for validation security.

For example:

<textarea data-ng-model="view.post.content" ng-trim="false" 
            ng-maxlength="maxValue" class="form-control" 
            style="height: 100px;"></textarea>

If you want to strictly restrict input length, use interpolation like this: maxlength={{maxValue}}.

<textarea data-ng-model="view.post.content" ng-trim="false" 
            maxlength="{{maxValue}}" class="form-control" 
            style="height: 100px;"></textarea>

Start with $scope.maxValue = 340 then update the value of the property inside the counter to 150.

Documentation

ngMaxlength (optional) number : Sets the key for the maxlength validation error if the value exceeds maxlength. Using a negative or non-numeric value allows values of any length to be viewed.

Example

Answer 2

Utilize the ng-maxlength directive and bind it to a property in the scope for validation security.

For example:

<textarea data-ng-model="view.post.content" ng-trim="false" 
            ng-maxlength="maxValue" class="form-control" 
            style="height: 100px;"></textarea>

If you want to strictly restrict input length, use interpolation like this: maxlength={{maxValue}}.

<textarea data-ng-model="view.post.content" ng-trim="false" 
            maxlength="{{maxValue}}" class="form-control" 
            style="height: 100px;"></textarea>

Start with $scope.maxValue = 340 then update the value of the property inside the counter to 150.

Documentation

ngMaxlength (optional) number : Sets the key for the maxlength validation error if the value exceeds maxlength. Using a negative or non-numeric value allows values of any length to be viewed.

Example

Answer 3

Answer №2

Utilize the angular directive ng-maxlength for character limit

<textarea data-ng-model="view.post.content" ng-trim="false" ng-maxlength="{{len}}" class="form-control" style="height: 100px;"></textarea>

In your controller

//character counter
$scope.len = 300;
$scope.counter = function() {
  $scope.len = 150;
};

Answer 4

Utilize the angular directive ng-maxlength for character limit

<textarea data-ng-model="view.post.content" ng-trim="false" ng-maxlength="{{len}}" class="form-control" style="height: 100px;"></textarea>

In your controller

//character counter
$scope.len = 300;
$scope.counter = function() {
  $scope.len = 150;
};

Tips for modifying the max length value in Angular

Answer №1

Answer №2

Similar questions

A guide to mastering Controllers in AngularJS

Is AngularJS limited to animating in just one direction?

Establishing bidirectional communication with a service property in an Angular application

Is there a way to replicate Twitter's "what's happening" box on our website?

I'm having trouble with res.redirect, why isn't it redirecting me as expected?

The functionalities of $scope and this in AngularJS

preserving the factory variable when reloading the page

Exploring Angular: Why is the link option important in directives?

What could be causing a template value in my AngularJS/Ionic Framework code to not be replaced properly?

Tips for maintaining the data on a page continuously updating in AngularJS

The ng-repeat function is not functioning properly when used within an li element to trigger

Utilizing AngularJS: Executing directives manually

AngularJS Firebase Login Scope Value Not Retained After Refresh

Using AngularJS to Filter Array Elements

Inject the variable into location.href

Tips for passing dynamic latitude and longitude values to a JavaScript function within an AngularJS framework

Rendering nested rows in Angular datatables

I am encountering an unresolved error: [$injector:modulerr] Problem on my AngularJS application related to routing

Tips for resetting the ngrepeat index within a modal

Upon reviewing the webpage using an IPAD and AngularJS