以Ryan Cavanaugh的公认答案为精神,我不允许链接,他提出了这样的结构:
var map: { [email: string]: Customer; } = { };
模拟Customer
的字典,其中字符串键打算是电子邮件地址,我尝试实现SelectionOtherInputDescriptor
的类似伪字典1:
export class SelectionOtherInputDescriptor {
constructor(public selectionName: string, public otherKey: any, public otherInputElementId: string) { }
}
export class SelectionOtherInputHelper {
selectionsWithOther: { [selectionKey: string]: SelectionOtherInputDescriptor; } = {};
getAllSelectionOthers() {
var things = $("[" + ATT_SELECTION_OTHER_FOR + "]");
for (var i = 0; i < things.length; i++) {
var selectionName = $(things[i]).attr(ATT_SELECTION_OTHER_FOR);
var desc = new SelectionOtherInputDescriptor(selectionName, 0, $(things[i]).attr("id"));
this.selectionsWithOther[selectionName] = desc;
};
for (var i in this.selectionsWithOther) {
window.console.log(i);
}
};
}
然而,我的变量selectionsWithOther
似乎总是只包含三个字符串(在具有三个选择和其他元素的测试页面中),即selectionKey
值。
1描述当用户在选择元素上选择Other时捕获实际值的输入。
这只是跟踪索引字符串(您的selectionKey
):
for (var i in this.selectionsWithOther) {
window.console.log(i);
}
要跟踪映射到该索引的值,您需要:
for (var i in this.selectionsWithOther) {
window.console.log(this.selectionsWithOther[i]); // Will trace 'Object'
window.console.log(this.selectionsWithOther[i].selectionName); // Should trace the value of the property on that object
}
关于JS中关联数组的更多信息:http://www.quirksmode.org/js/associative.html