minnacaptain

import { calculateAverageScore } from 'https://raw.githubusercontent.com/minnacaptain/have-you-tried-deno-yet/master/calculate.ts'

const getContentFromInternet = () =>
    fetch(
        "https://raw.githubusercontent.com/minnacaptain/have-you-tried-deno-yet/master/example_data.txt",
    ).then((t) => t.text());

console.log(
    "Average score: " + await calculateAverageScore(getContentFromInternet),
);

minnacaptain

import { assertEquals } from "https://deno.land/std@0.102.0/testing/asserts.ts";
import { calculateAverageScore } from './calculate.ts'

const mockGetContent = () => Promise.resolve(
    "student_name,horoscope,exam_name,exam_score,feedback_score,would_recommend\n" +
    "Braylen Natalia,Gemini,AWS Certified Cloud Practitioner,1,4.26,Yes\n" +
    "Kash Macey,Leo,AWS Certified SysOps Administrator,2,3.04,Yes\n" +
    "Erica Daniela,Sagittarius,AWS Certified Cloud Practitioner,3,7.61,Yes"
)

minnacaptain

export const calculateAverageScore = (getContent: () => Promise<string>) =>
    getContent().then((result) => {
        const lines = result.split("\n")
            .map((l) => l.split(","))
            .filter((_, i) => i !== 0);
        const scores = lines.map((l) => Number(l[3]));
        return scores.reduce((a, c) => a + c) / scores.length;
    });

minnacaptain

const getContentFromInternet = () =>
    fetch(
        "https://raw.githubusercontent.com/minnacaptain/have-you-tried-deno-yet/master/example_data.txt",
    ).then((t) => t.text());

// calculateAverageScore is unchanged

console.log("Average score: " + await calculateAverageScore(getContentFromInternet));

minnacaptain

const getContent = () => Deno.readTextFile('./example_data.txt')

const calculateAverageScore = (getContent: () => Promise<string>) => getContent().then(result => {
    const lines = result.split("\n")
        .map(l => l.split(","))
        .filter((_, i) => i !== 0)
    const scores = lines.map(l => Number(l[3]))
    return scores.reduce((a, c) => a + c) / scores.length
})

minnacaptain

const getContent = () => Deno.readTextFile('./example_data.txt')

const calculateAverageScore = (getContent: () => Promise<string>) => getContent().then(result => {
    const lines = result.split("\n").map(l => l.split(","))
    console.log(lines)
})

calculateAverageScore(getContent)