Nick Heiner Nick Heiner - 1 year ago 83
AngularJS Question

Difficulty with ng-model, ng-repeat, and inputs

I am trying to allow the user to edit a list of items by using

. (See this fiddle.) However, both approaches I've tried lead to bizarre behavior: one doesn't update the model, and the other blurs the form on each keydown.

Am I doing something wrong here? Is this not a supported use case?

Here is the code from the fiddle, copied for convenience:

<html ng-app>
<link href="//" rel="stylesheet">
<body ng-init="names = ['Sam', 'Harry', 'Sally']">
<h1>Fun with Fields and ngModel</h1>
<p>names: {{names}}</p>
<h3>Binding to each element directly:</h3>
<div ng-repeat="name in names">
Value: {{name}}
<input ng-model="name">
<p class="muted">The binding does not appear to be working: the value in the model is not changed.</p>
<h3>Indexing into the array:</h3>
<div ng-repeat="name in names">
Value: {{names[$index]}}
<input ng-model="names[$index]">
<p class="muted">Type one character, and the input field loses focus. However, the binding appears to be working correctly.</p>


Answer Source

This seems to be a binding issue.

The advice is don't bind to primitives.

Your ngRepeat is iterating over strings inside a collection, when it should be iterating over objects. To fix your problem

<body ng-init="models = [{name:'Sam'},{name:'Harry'},{name:'Sally'}]">
    <h1>Fun with Fields and ngModel</h1>
    <p>names: {{models}}</p>
    <h3>Binding to each element directly:</h3>
    <div ng-repeat="model in models">
        Value: {{}}
        <input ng-model="">                         


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