本文整理匯總了TypeScript中rxjs/Rx.Observable.fromEventPattern方法的典型用法代碼示例。如果您正苦於以下問題：TypeScript Observable.fromEventPattern方法的具體用法？TypeScript Observable.fromEventPattern怎麽用？TypeScript Observable.fromEventPattern使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類rxjs/Rx.Observable的用法示例。
在下文中一共展示了Observable.fromEventPattern方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的TypeScript代碼示例。
示例1: constructor
constructor(public ref:string, public cancelCallback) {
this.value = Rx.Observable.fromEventPattern(
_ => this.ref.on('value', _),
_ => this.ref.off('value', _)
)
.map(snapshot => {
if (typeof snapshot.val() === 'object' && snapshot.val() !== null)
return Object.assign({'.key':snapshot.key()}, snapshot.val())
else
return {'.key':snapshot.key(), '.value':snapshot.val()}
})
}示例2: expect
observable1 = constructorZone1.run(() => {
return Rx.Observable.fromEventPattern(
(handler: any) => {
expect(Zone.current.name).toEqual(constructorZone1.name);
button.addEventListener('click', handler);
log.push('addListener');
},
(handler: any) => {
expect(Zone.current.name).toEqual(constructorZone1.name);
button.removeEventListener('click', handler);
document.body.removeChild(button);
log.push('removeListener');
}
);
});示例3: function
observable1 = constructorZone1.run(() => {
const handler = function() {
log.push('handler');
};
return Rx.Observable.fromEventPattern(
() => {
expect(Zone.current.name).toEqual(constructorZone1.name);
document.addEventListener('click', handler);
log.push('addListener');
},
() => {
expect(Zone.current.name).toEqual(constructorZone1.name);
document.removeEventListener('click', handler);
log.push('removeListener');
});
});