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我有一本詞典<key, value>
,並且想要訪問html
中的特定key
的值。這是可能的方式?如何獲得特定的值在一個詞典在角2的HTML
export interface ICollection<T> {
add(key: number, value: T);
containsKey(key: number): boolean;
item(key: number): T;
keys(): number[];
values(): T[];
}
export class Collection<T> implements ICollection<T> {
private items: { [index: number]: T } = {};
public containsKey(key: number): boolean {
return this.items.hasOwnProperty(key);
}
public add(key: number, value: T) {
this.items[key] = value;
}
public item(key: number): T {
return this.items[key];
}
public keys(): number[] {
var keySet: any[] = [];
for (let item in this.items) {
if (this.items.hasOwnProperty(item)) {
keySet.push(item);
}
}
return keySet;
}
public values(): T[] {
var values: T[] = [];
for (var prop in this.items) {
if (this.items.hasOwnProperty(prop)) {
values.push(this.items[prop]);
}
}
return values;
}
}
export const FIELDS = new Collection<String>();
FIELDS.add(100002, "First Name");
FIELDS.add(10003, "Last Name",);
FIELDS.add(100032, "Contact ID",);
現在我想在我的HTML模板,訪問值FirstName
事情是這樣的:
<div class="form-group row col-md-6">
<label for="firstName" class="col-sm-6 col-form-label">First Name</label>
<div class="col-sm-6">
<input id="firstName" class="form-control" [ngModel]="FIELDS['100002']" readonly/>
</div>
</div>
是否有一種方式來獲得訪問?
在此先感謝!