AngularJS filtrlari
AngularJS’da ma’lumotlarni formatlash uchun filtrlar qo‘shish mumkin.
AngularJS filtrlari
AngularJS ma’lumotlarni o‘zgartirish uchun filtrlarni taqdim etadi:
currencySonni valyuta formatiga keltiradi.dateSanani belgilangan formatga keltiradi.filterMassivdan elementlarning bir qismini tanlaydi.jsonObyektni JSON string ko‘rinishiga keltiradi.limitToMassiv/stringni belgilangan miqdordagi elementlar/belgilar bilan cheklaydi.lowercaseStringni kichik harflarga o‘tkazadi.numberSonni string ko‘rinishiga keltiradi.orderByMassivni ifoda bo‘yicha tartiblaydi.uppercaseStringni katta harflarga o‘tkazadi.
Ifodalarga filtr qo‘shish
Filtrlar ifodalarga | (pipe) belgisi va undan keyin filtr yozish orqali qo‘shiladi.
uppercase filtri stringlarni katta harflarga o‘tkazadi:
Misol
<div ng-app="myApp" ng-controller="personCtrl">
<p>The name is {{ lastName | uppercase }}</p>
</div>
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lowercase filtri stringlarni kichik harflarga o‘tkazadi:
Misol
<div ng-app="myApp" ng-controller="personCtrl">
<p>The name is {{ lastName | lowercase }}</p>
</div>
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Direktivalarga filtr qo‘shish
Filtrlar ng-repeat kabi direktivalarga | (pipe) belgisi va undan keyin filtr yozish orqali qo‘shiladi:
Misol
orderBy filtri massivni tartiblaydi:
<div ng-app="myApp" ng-controller="namesCtrl">
<ul>
<li ng-repeat="x in names | orderBy:'country'">
{{ x.name + ', ' + x.country }}
</li>
</ul>
</div>
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currency filtri
currency filtri sonni valyuta ko‘rinishida formatlaydi:
Misol
<div ng-app="myApp" ng-controller="costCtrl">
<h1>Price: {{ price | currency }}</h1>
</div>
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currency filtri haqida AngularJS currency filtri ma’lumotnomasida batafsil o‘qing
filter filtri
filter filtri massivning bir qismini tanlaydi.
filter filtrini faqat massivlarda ishlatish mumkin va u faqat mos keluvchi elementlardan iborat massivni qaytaradi.
Misol
Tarkibida "i" harfi bor ismlarni qaytaring:
<div ng-app="myApp" ng-controller="namesCtrl">
<ul>
<li ng-repeat="x in names | filter : 'i'">
{{ x }}
</li>
</ul>
</div>
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filter filtri haqida AngularJS filter filtri ma’lumotnomasida batafsil o‘qing
Massivni foydalanuvchi kiritgan qiymat asosida filtrlash
Kiritish maydoniga ng-model direktivasini o‘rnatib, maydon qiymatini filtrda ifoda sifatida ishlatishimiz mumkin.
Kiritish maydoniga harf yozing, ro‘yxat moslikka qarab qisqaradi/kengayadi:
- {{ x }}
Misol
<div ng-app="myApp" ng-controller="namesCtrl">
<p><input type="text" ng-model="test"></p>
<ul>
<li ng-repeat="x in names | filter : test">
{{ x }}
</li>
</ul>
</div>
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Massivni foydalanuvchi kiritgan qiymat asosida tartiblash
Tartiblash tartibini o‘zgartirish uchun jadval sarlavhalarini bosing:
| Name | Country |
|---|---|
| {{x.name}} | {{x.country}} |
Jadval sarlavhalariga ng-click direktivasini qo‘shish orqali massivning tartiblash tartibini o‘zgartiradigan funksiyani ishga tushirishimiz mumkin:
Misol
<div ng-app="myApp" ng-controller="namesCtrl">
<table border="1" width="100%">
<tr>
<th ng-click="orderByMe('name')">Name</th>
<th ng-click="orderByMe('country')">Country</th>
</tr>
<tr ng-repeat="x in names | orderBy:myOrderBy">
<td>{{x.name}}</td>
<td>{{x.country}}</td>
</tr>
</table>
</div>
<script>
angular.module('myApp', []).controller('namesCtrl', function($scope) {
$scope.names = [
{name:'Jani',country:'Norway'},
{name:'Carl',country:'Sweden'},
{name:'Margareth',country:'England'},
{name:'Hege',country:'Norway'},
{name:'Joe',country:'Denmark'},
{name:'Gustav',country:'Sweden'},
{name:'Birgit',country:'Denmark'},
{name:'Mary',country:'England'},
{name:'Kai',country:'Norway'}
];
$scope.orderByMe = function(x) {
$scope.myOrderBy = x;
}
});
</script>
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Maxsus filtrlar
Modulingizda yangi filtr fabrika funksiyasini ro‘yxatdan o‘tkazish orqali o‘z filtrlaringizni yaratishingiz mumkin:
Misol
"myFormat" nomli maxsus filtr yarating:
<ul ng-app="myApp" ng-controller="namesCtrl">
<li ng-repeat="x in names">
{{x | myFormat}}
</li>
</ul>
<script>
var app = angular.module('myApp', []);
app.filter('myFormat', function() {
return function(x) {
var i, c, txt = "";
for (i = 0; i < x.length; i++) {
c = x[i];
if (i % 2 == 0) {
c = c.toUpperCase();
}
txt += c;
}
return txt;
};
});
app.controller('namesCtrl', function($scope) {
$scope.names = ['Jani', 'Carl', 'Margareth', 'Hege', 'Joe', 'Gustav', 'Birgit', 'Mary', 'Kai'];
});
</script>
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myFormat filtri har ikkinchi belgini katta harfga o‘tkazadi.
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