LocalStorage fire twice to store Object - angularjs

Question

I am try to store an object into LocalStorage, but when I triggersetItem, its store two objects (duplicate). Below are my codes;
html
<form class="clearBoth" ng-submit="addProject(projectInfo)">
<div class="list" ng-model="projectInfo">
<label class="item item-input item-stacked-label">
<span class="input-label">Project Name</span>
<input type="text" ng-model="projectInfo.name" placeholder="PSN" required>
</label>
<label class="item item-input item-stacked-label">
<span class="input-label">Host</span>
<input type="text" ng-model="projectInfo.host" placeholder="http://psn.com.my" required>
</label>
<label class="item item-input item-stacked-label">
<span class="input-label">Instance</span>
<input type="text" ng-model="projectInfo.instance" placeholder="PSN" required>
</label>
</div>
<button class="button button-block button-positive" ng-click="addProject(projectInfo)">Block Button</button>
<button class="button button-block button-assertive" ng-click="removeProject()">Block Button</button>
</form>
controller
.controller("ProjectAddCtrl", function($scope) {
$scope.addProject = function (projectInfo) {
var oldItems = JSON.parse(localStorage.getItem('itemsArray')) || [];
$scope.projects = [{
name: "",
host: "",
instance: ""
}];
oldItems.push(projectInfo);
localStorage.setItem('itemsArray', JSON.stringify(oldItems));
};
$scope.removeProject = function () { localStorage.clear(); };
console.log(JSON.parse(localStorage.getItem('itemsArray')));
})

Answer 1

Both ng-click on the <button> and ng-submit on the <form> are being triggered and hence, you are seeing the same data being added twice. You can fix it by adding type="button" attribute on the first button.
Check documentation - the default value for the type attribute is submit and hence, both the click and submit events are being fired.