静态网页已经成为历史,如今的web设计趋势是预测客户想法并提供更好的互动功能,例如自动填写表单、搜索Wikipedia等。RxJS框架可以很方便地为鼠标和键盘事件提供响应。
示例代码:
var $input = $('#input'),
$results = $('#results');
/* Only get the value from each key up */
var keyups = Rx.Observable.fromEvent(input, 'keyup')
.map(function (e) {
return e.target.value;
})
.filter(function (text) {
return text.length > 2;
});
/* Now throttle/debounce the input for 500ms */
var throttled = keyups
.throttle(500 /* ms */);
/* Now get only distinct values, so we eliminate the arrows and other control characters */
var distinct = keyups
.distinctUntilChanged();