vue-use-query/lib/core/subscribable.js

vue use query

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Subscribable = void 0;
/**
 * 事件的订阅处理中心
 */
var Subscribable = /** @class */ (function () {
    function Subscribable() {
        this.listeners = [];
    }
    Subscribable.prototype.subscribe = function (listener) {
        var _this = this;
        var callback = listener || (function () { return undefined; });
        this.listeners.push(callback);
        this.onSubscribe();
        return function () {
            _this.listeners = _this.listeners.filter(function (x) { return x !== callback; });
            _this.onUnsubscribe();
        };
    };
    Subscribable.prototype.hasListeners = function () {
        return this.listeners.length > 0;
    };
    //#region 生命周期函数
    Subscribable.prototype.onSubscribe = function () {
        // Do nothing
    };
    Subscribable.prototype.onUnsubscribe = function () {
        // Do nothing
    };
    return Subscribable;
}());
exports.Subscribable = Subscribable;