给定两个数组-contact（）和contactsSelected（）-如何匹配两者？
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我有两个具有以下结构类型的数组（contacts和contactsSelected）：
{
id: 1,
name: bob
},
{
id: 213,
name: Rob
}
userCardModel.contactsToShow = ko.dependentObservable(function () {
return ko.utils.arrayFilter(this.contacts(), function(contact) {
return /////////////// LOGIC GOES HERE TO See if this contact.id() is contained in the contactsSelected() array
});
}, userCardModel);
没有找到相关结果
已邀请:
2 个回复
磐乓铝举
var getSelectedIds = function(sel) { var len=sel.length, o={}, i; for (i=0; i<len; i++) { o[sel[i].id] = true; } return o; }; var selectedIds = getSelectedIds(contactsSelected); (1 in selectedIds); // => true (2 in selectedIds); // => false selectedIds.hasOwnProperty(213); // => true selectedIds.hasOwnProperty(214); // => false掏得透垦滩
var contactsSelectedLength = contacts.length; for (var i = 0, contactsLength = contacts.length; i++) { var contact = contacts[i]; for (var j = 0; j < contactsSelectedLength; j++) { var selectedContact = contactsSelected[j]; if (contact.id == selectedContact.id) { // It is in there! } } }