fix numeral import Typescript error

[shalomscott]

Small Typescript error. However this resulted in significant noise for my project when bundling with Rollup. Output was:

src/main.ts → public/build/bundle.js...
(!) Cannot call a namespace ('numeral')
node_modules/kosher-zmanim/dist/lib-es6/util/ZmanimFormatter.js: (169:18)
167:             return ZmanimFormatter.formatXSDDurationTime(time);
168:         }
169:         let sb = (numeral(time.getHours()).format(this.hourNF)).concat(':')
                       ^
170:             .concat(numeral(time.getMinutes()).format(ZmanimFormatter.minuteSecondNF).toString());
171:         if (this.useSeconds) {
(!) Cannot call a namespace ('numeral')
node_modules/kosher-zmanim/dist/lib-es6/util/ZmanimFormatter.js: (170:20)
168:         }
169:         let sb = (numeral(time.getHours()).format(this.hourNF)).concat(':')
170:             .concat(numeral(time.getMinutes()).format(ZmanimFormatter.minuteSecondNF).toString());
                         ^
171:         if (this.useSeconds) {
172:             sb = sb.concat(':').concat(numeral(time.getSeconds()).format(ZmanimFormatter.minuteSecondNF).toString());
...

... and so on.

Related discussion here: Cannot call a namespace ('express').

After this tiny fix the noise was gone.

[BehindTheMath]

Did you run the unit tests? I need to set up an Action to run them automatically, but when I made this change and ran them, I got the following error for many tests:

TypeError: numeral_1.default is not a function

    at Function.formatDecimal (C:\Users\aryeh\WebstormProjects\KosherZmanim\src\util\ZmanimFormatter.ts:381:64)
    at Function.getOutputMetadata (C:\Users\aryeh\WebstormProjects\KosherZmanim\src\util\ZmanimFormatter.ts:507:34)
    at Function.toJSON (C:\Users\aryeh\WebstormProjects\KosherZmanim\src\util\ZmanimFormatter.ts:477:33)
    at Object.getZmanimJson (C:\Users\aryeh\WebstormProjects\KosherZmanim\src\kosher-zmanim.ts:16:26)
    at Object.<anonymous> (C:\Users\aryeh\WebstormProjects\KosherZmanim\tests\kosher-zmanim.test.ts:21:35)
    at Object.asyncJestTest (C:\Users\aryeh\WebstormProjects\KosherZmanim\node_modules\jest-jasmine2\build\jasmineAsyncInstall.js:106:37)
    at C:\Users\aryeh\WebstormProjects\KosherZmanim\node_modules\jest-jasmine2\build\queueRunner.js:45:12
    at new Promise (<anonymous>)
    at mapper (C:\Users\aryeh\WebstormProjects\KosherZmanim\node_modules\jest-jasmine2\build\queueRunner.js:28:19)
    at C:\Users\aryeh\WebstormProjects\KosherZmanim\node_modules\jest-jasmine2\build\queueRunner.js:75:41
    at processTicksAndRejections (internal/process/task_queues.js:93:5)

[shalomscott]

My bad, I had not run them.

After looking at numeral.js's type definitions and noticing the export = numeral line, I was able to come to a section in the TS docs where it say the proper way to import such an object is with the following interesting syntax: import module = require("module"). However trying this in Kosher Zmanim broke the build. Got the following:

src/util/ZmanimFormatter.ts:2:1 - error TS1202: Import assignment cannot be used when targeting ECMAScript modules. Consider using 'import * as ns from "mod"', 'import {a} from "mod"', 'import d from "mod"', or another module format instead.

2 import numeral = require("numeral");
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

In the end, managed to skirt the Typescript issue with this unfortunate bit of syntax:

import * as numeral_ from 'numeral';
const numeral = numeral_;

Inspiration from here: https://github.com/jvandemo/generator-angular2-library/issues/221#issuecomment-355945207

Updated PR incoming.

[shalomscott]

keepalive