@beenotung/tslib/result.js

utils library in Typescript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.thenF = exports.then = exports.isPromise = void 0;
const PromiseString = Promise.resolve().toString();
function isPromise(x) {
    return (x &&
        typeof x === 'object' &&
        typeof x.toString === 'function' &&
        x.toString() === PromiseString);
}
exports.isPromise = isPromise;
function then(x, f, onError) {
    if (isPromise(x)) {
        const res = x.then(f);
        if (onError) {
            res.catch(onError);
        }
        return res;
    }
    return f(x);
}
exports.then = then;
function thenF(f, q, onError) {
    try {
        const x = f();
        return then(x, q, onError);
    }
    catch (e) {
        if (typeof onError === 'function') {
            onError(e);
        }
        return Promise.reject(e);
    }
}
exports.thenF = thenF;
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