El modelo de obtención de Backbone.js se usa para devolver un valor de un atributo particular del modelo.
Sintaxis :
Backbone.Model.get(attribute)
Parámetro: Acepta un único parámetro:
- atributo: Se utiliza para definir el atributo para el modelo creado.
Ejemplo 1: En este ejemplo, devolveremos los atributos del modelo de libro.
HTML
<!DOCTYPE html>
<html>
<head>
<title>Backbone.js get Model</title>
<script src=
"https://code.jquery.com/jquery-2.1.3.min.js"
type="text/javascript">
</script>
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js"
type="text/javascript">
</script>
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js"
type="text/javascript">
</script>
</head>
<body>
<script type="text/javascript">
var Books = Backbone.Model.extend();
var book = new Books({
bookid: 23,
price: 678,
book_name: "css"
});
document.write(' Values: ' + JSON.stringify(book));
document.write("<br>");
document.write('bookid: ', book.get('bookid'));
document.write("<br>");
document.write('price: ', book.get('price'));
document.write("<br>");
document.write('book_name: ', book.get('book_name'));
</script>
</body>
</html>
Producción:
Values: {"bookid":23,"price":678,"book_name":"css"}
bookid: 23
price: 678
book_name: css
Ejemplo 2: En este ejemplo, modificaremos el valor y obtendremos los valores.
HTML
<!DOCTYPE html>
<html>
<head>
<title>Backbone.js get Model</title>
<script src=
"https://code.jquery.com/jquery-2.1.3.min.js"
type="text/javascript">
</script>
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js"
type="text/javascript">
</script>
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js"
type="text/javascript">
</script>
</head>
<body>
<script type="text/javascript">
var Books = Backbone.Model.extend();
var book = new Books({
bookid: 23,
price: 678,
book_name: "css"
});
document.write(' Values: ' + JSON.stringify(book));
book.set({
bookid: 33,
price: 211,
book_name: "php"
});
document.write("<br>");
document.write('book_name: ', book.get('book_name'));
</script>
</body>
</html>
Salida :
Values: {"bookid":23,"price":678,"book_name":"css"}
book_name: php
Referencia: https://backbonejs.org/#Model-get
Publicación traducida automáticamente
Artículo escrito por sireeshakanneganti112 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA