xstream
Version:
An extremely intuitive, small, and fast functional reactive stream library for JavaScript
93 lines • 6.84 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var index_1 = require("../index");
var DelayOperator = /** @class */ (function () {
function DelayOperator(dt, ins) {
this.dt = dt;
this.ins = ins;
this.type = 'delay';
this.out = null;
}
DelayOperator.prototype._start = function (out) {
this.out = out;
this.ins._add(this);
};
DelayOperator.prototype._stop = function () {
this.ins._remove(this);
this.out = null;
};
DelayOperator.prototype._n = function (t) {
var u = this.out;
if (!u)
return;
var id = setInterval(function () {
u._n(t);
clearInterval(id);
}, this.dt);
};
DelayOperator.prototype._e = function (err) {
var u = this.out;
if (!u)
return;
var id = setInterval(function () {
u._e(err);
clearInterval(id);
}, this.dt);
};
DelayOperator.prototype._c = function () {
var u = this.out;
if (!u)
return;
var id = setInterval(function () {
u._c();
clearInterval(id);
}, this.dt);
};
return DelayOperator;
}());
/**
* Delays periodic events by a given time period.
*
* Marble diagram:
*
* ```text
* 1----2--3--4----5|
* delay(60)
* ---1----2--3--4----5|
* ```
*
* Example:
*
* ```js
* import fromDiagram from 'xstream/extra/fromDiagram'
* import delay from 'xstream/extra/delay'
*
* const stream = fromDiagram('1----2--3--4----5|')
* .compose(delay(60))
*
* stream.addListener({
* next: i => console.log(i),
* error: err => console.error(err),
* complete: () => console.log('completed')
* })
* ```
*
* ```text
* > 1 (after 60 ms)
* > 2 (after 160 ms)
* > 3 (after 220 ms)
* > 4 (after 280 ms)
* > 5 (after 380 ms)
* > completed
* ```
*
* @param {number} period The amount of silence required in milliseconds.
* @return {Stream}
*/
function delay(period) {
return function delayOperator(ins) {
return new index_1.Stream(new DelayOperator(period, ins));
};
}
exports.default = delay;
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