bmfe-vue2-base/src/js/baseLibs/promise_finally.js

BM 后台系统基础框架

(function() {
    var local;
    if (typeof global !== 'undefined') local = global;
    else if (typeof window !== 'undefined' && window.document) local = window;
    else local = self;

    local.Promise.prototype['finally'] = function finallyPolyfill(callback) {
        var constructor = this.constructor;

        return this.then(function(value) {
            return constructor.resolve(callback()).then(function() {
                return value;
            });
        }, function(reason) {
            return constructor.resolve(callback()).then(function() {
                throw reason;
            });
        });
    };
}());