Seleccionar un grupo de chekbox’s con jQuery
A continuación se expone un script para seleccionar/deseleccionar un grupo de checkboxes con jQuery. En mi opinión, quizá la forma más adecuada de acceder a los checkboxes mediante jQuery es asignándoles una clase. De esta forma podemos actuar sobre los checkboxes de una manera selectiva. Podremos tener más elementos de este tipo en nuestra página web pero sólo actuaremos sobre los que poseen determinada clase.
Lo primero que debemos hacer es incluir la librería jQuery dentro de la etiqueta <head>.
Seguidamente también en el <head> debemos incluir la función que se encargará de seleccionar o deseleccionar el grupo de checkboxes.
<script language="javascript">
$(document).ready(function(){
$(".check_todos").click(function(event){
if($(this).is(":checked")) {
$(".ck:checkbox:not(:checked)").attr("checked", "checked");
}else{
$(".ck:checkbox:checked").removeAttr("checked");
}
});
});
</script>
Finalmente, dentro del <body> necesitaremos insertar los checkboxes de la siguiente forma:
<form> <p><input name="Todos" type="checkbox" value="1" class="check_todos"/>Seleccionar todos</p> <p> <input name="elemento1" type="checkbox" value="1" class="ck"/>elemento 1<br /> <input name="elemento2" type="checkbox" value="2" class="ck"/>elemento 2<br /> <input name="elemento3" type="checkbox" value="3" class="ck"/>elemento 3<br /> <input name="elemento4" type="checkbox" value="4" class="ck"/>elemento 4<br /> <input name="elemento5" type="checkbox" value="5" class="ck"/>elemento 5</p> </form>
Autor
Escrito por Jose Aguilar - Director ejecutivo y tecnológico en JA Modules. Experto programador PrestaShop y Experto programador WordPress.
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Muy buen post ahora se ocupa .prop en lugar de .attr
$(«.check_todos»).click(function(event){
if($(this).is(«:checked»)) {
$(«.ck:checkbox:not(:checked)»).prop(«checked», true);
}else{
$(«.ck:checkbox:checked»).prop(«checked», false);
}
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