Adding Lines To A Form Using Angularjs
I am trying to create a form that users can press the '+' sign and add a new line. I do this by calling a function when a button is clicked and then pushing a new line into the arr
Solution 1:
You need to push something into the array.
Push() Definition and Usage: The push() method adds new items to the end of an array, and returns the new length.
Note: The new item(s) will be added at the end of the array.
Note: This method changes the length of the array.
Tip: To add items at the beginning of an array, use the unshift() method.
http://www.w3schools.com/jsref/jsref_push.asp
var myApp = angular.module('myApp', []);
myApp.controller('myController', ['$scope',
function($scope) {
$scope.arr = [1, 2];
$scope.addLine = function(index) {
$scope.arr.push(index);
}
$scope.removeLine = function(index) {
$scope.arr.splice(index, 1);
}
}
]);<!doctype html><htmlng-app="myApp"><head><title>Hello AngularJS</title><scriptsrc="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script></head><body><divng-controller="myController"><buttonname="addLine"ng-click="addLine(arr.length+1)">Add Line</button>
{{ arr | json}}
<ul><lidata-ng-repeat="x in arr">
{{ x }} - <buttonname="addLine"ng-click="removeLine($index)">Remove Line</button></li></ul></div></body></html>Solution 2:
Look this:
var app = angular.module('App', []);
app.controller('AppController', ['$scope', function($scope) {
$scope.arr = [1,2];
$scope.addLine = function(last){
$scope.arr.push(last + 1);
}
$scope.removeLine = function(index){
$scope.arr.splice(index, 1);
}
}]);<scriptsrc="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script><divng-app="App"ng-controller="AppController"><buttonng-click="addLine(arr.length)">Add Line</button><hr/><divdata-ng-repeat="x in arr">
Line: {{x}} <buttonng-click="removeLine($index)">Del</button></div></div>
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