bidirectional data synchronization with AngularJS version 1

I have an input field and a text area set up like this:

<input type="text" placeholder="Your URL*" id="userURL" ng-model = "usermodel"/><br />
<textarea id="final">{{usermodel}}</textarea><br />

The issue I'm facing is that the text in the textarea will be changed by a controller, but I want the user to be able to type in the input field without the textarea refreshing.

Here's an example:

controller: {
textareaoutoutput = "hi ..... How are you";}

textarea: hi {{usermodel}} how are you? <br>
input field: john

However, when I start typing in the field, the "Hi how are you?" text gets removed and only the input entered in the field is displayed. I want to keep the "Hi how are you?" text fixed and unchangeable while allowing the user to enter more text and see it added instantly.

I hope this explanation makes sense.

Answer №1

inside the controller :

$scope.textVal = " hi "+ $scope.usermodel + " how are you?"

<textarea id="final">{{textVal}}</textarea><br />

I believe that you can grasp it and always strive to function for string manipulation.

or

<textarea id="final">Hi {{usermodel}} how are you!</textarea><br />

Answer №2

It's uncertain whether this method will be effective. The goal is for the controller to display text in the textarea, with the angular expression tags {{x}} embedded within the output document.

Perhaps a different approach would yield better results.

Here is an alternative example:

TEXTA + {{angular expression}} + TEXTB

Is it feasible to update data in texts A and B while allowing users to insert content into {{x}} without needing to refresh the textarea?

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