javascript How to filter (key, value) with ng repeat in AngularJs?
$scope.filterSecId = function(items) {
var result = {};
angular.forEach(items, function(value, key) {
if (!value.hasOwnProperty('secId')) {
result[key] = value;
}
});
return result;
}
<div ng-repeat="(k,v) in filterSecId(items)">
{{k}} {{v.pos}}
</div>
@Sebastian, sorry about that. But there are people who are egghead.io subscribers and I expect it's useful to them.
@kentcdodds don't post links which are not free!
Angular filters can only be applied to arrays, not objects.
Note: This is a perf anti-pattern now. Angular 1.3 has stateless filters now (egghead.io/lessons/) so you'd definitely want to create a filter for this.
You have two options here, 1) move $scope.items to an array or 2) pre-filter the ng-repeat items, like this:
javascript How to filter (key, value) with ng repeat in AngularJs?
<div ng-repeat="(k,v) in items | with:'secId'">
{{k}} {{v.pos}}
</div>
app.filter('with', function() {
return function(items, field) {
var result = {};
angular.forEach(items, function(value, key) {
if (!value.hasOwnProperty(field)) {
result[key] = value;
}
});
return result;
};
});
And in html:
My solution would be create custom filter and use it:
javascript How to filter (key, value) with ng repeat in AngularJs?
$scope.filterSecId = function(items) {
var result = {};
angular.forEach(items, function(value, key) {
if (!value.hasOwnProperty('secId')) {
result[key] = value;
}
});
return result;
}
<div ng-repeat="(k,v) in filterSecId(items)">
{{k}} {{v.pos}}
</div>
"Selects a subset of items from array and returns it as a new array."
@kentcdodds don't post links which are not free!
Angular filters can only be applied to arrays and not objects, from angular's API -
Note: This is a perf anti-pattern now. Angular 1.3 has stateless filters now (egghead.io/lessons/) so you'd definitely want to create a filter for this.
Why not just add an ng-if on the repeated element?
You have two options here: 1) move $scope.items to an array or - 2) pre-filter the ng-repeat items, like this:
javascript How to filter (key, value) with ng repeat in AngularJs?
<b>Example1:</b>
<p ng-repeat="item in items | toArray: true | pick: 'secId'">
{{ item.$key }}, {{ item }}
</p>
<b>Example2:</b>
<p ng-repeat="item in nestedItems | toArray: true | pick: 'secId || details.secId' ">
{{ item.$key }}, {{ item }}
</p>
angular.module('app', ['angular.filter'])
.controller('MainCtrl', function($scope) {
//your example data
$scope.items = {
'A2F0C7':{ secId:'12345', pos:'a20' },
'C8B3D1':{ pos:'b10' }
};
//more advantage example
$scope.nestedItems = {
'A2F0C7':{
details: { secId:'12345', pos:'a20' }
},
'C8B3D1':{
details: { pos:'a20' }
},
'F5B3R1': { secId:'12345', pos:'a20' }
};
});
It looks like the toArray filter is not present anymore. Is there a replacement, because the filter filter still does not allow objects?
You can simply use angular.filter module, and then you can filter even by nested properties. see: jsbin2 Examples:
You should disclose that angular.filter is not a core angular module and you are the author of it.
javascript How to filter (key, value) with ng repeat in AngularJs?
<div ng-controller="TestCtrl">
<div ng-repeat="(k,v) in items | filter:{secId: '!!'}">
{{k}} {{v.pos}}
</div>
</div>
How did you get this to work? When I use a filter with an ng-repeated object, I get an error which is what is expected base on the Angular documentation.
It is kind of late, but I looked for e similar filter and ended using something like this:
javascript How to filter (key, value) with ng repeat in AngularJs?
$scope.filterSecId = function(items) {
var result = {};
angular.forEach(items, function(value, key) {
if (!value.hasOwnProperty('secId')) {
result[key] = value;
}
});
return result;
}
<div ng-repeat="(k,v) in filterSecId(items)">
{{k}} {{v.pos}}
</div>
"Selects a subset of items from array and returns it as a new array."
@kentcdodds don't post links which are not free!
Angular filters can only be applied to arrays and not objects, from angular's API -
Note: This is a perf anti-pattern now. Angular 1.3 has stateless filters now (egghead.io/lessons/) so you'd definitely want to create a filter for this.
Why not just add an ng-if on the repeated element?
You have two options here: 1) move $scope.items to an array or - 2) pre-filter the ng-repeat items, like this:
javascript How to filter (key, value) with ng repeat in AngularJs?
<b>Example1:</b>
<p ng-repeat="item in items | toArray: true | pick: 'secId'">
{{ item.$key }}, {{ item }}
</p>
<b>Example2:</b>
<p ng-repeat="item in nestedItems | toArray: true | pick: 'secId || details.secId' ">
{{ item.$key }}, {{ item }}
</p>
angular.module('app', ['angular.filter'])
.controller('MainCtrl', function($scope) {
//your example data
$scope.items = {
'A2F0C7':{ secId:'12345', pos:'a20' },
'C8B3D1':{ pos:'b10' }
};
//more advantage example
$scope.nestedItems = {
'A2F0C7':{
details: { secId:'12345', pos:'a20' }
},
'C8B3D1':{
details: { pos:'a20' }
},
'F5B3R1': { secId:'12345', pos:'a20' }
};
});
It looks like the toArray filter is not present anymore. Is there a replacement, because the filter filter still does not allow objects?
You can simply use angular.filter module, and then you can filter even by nested properties. see: jsbin2 Examples:
You should disclose that angular.filter is not a core angular module and you are the author of it.
javascript How to filter (key, value) with ng repeat in AngularJs?
<div ng-repeat="(k,v) in items | with:'secId'">
{{k}} {{v.pos}}
</div>
app.filter('with', function() {
return function(items, field) {
var result = {};
angular.forEach(items, function(value, key) {
if (!value.hasOwnProperty(field)) {
result[key] = value;
}
});
return result;
};
});
And in html:
My solution would be create custom filter and use it:
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