Completed day 1. Exercises.

solutions/day-01/array-level-1.js

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+let example1 = Array();
+let example2 = Array(6);
+console.log(example2.length);
+console.log(
+  example2[0],
+  example2[example2.length - 1],
+  example2[Math.trunc(example2.length / 2)]
+);
+let mixedDataTypes = [0, 1.3, "test", [0, 1], { test: "1" }];
+let itCompanies = [
+  "Facebook",
+  "Google",
+  "Microsoft",
+  "Apple",
+  "IBM",
+  "Oracle",
+  "Amazon",
+];
+console.log(itCompanies);
+console.log(itCompanies.length);
+console.log(
+  itCompanies[0],
+  itCompanies[example2.length - 1],
+  itCompanies[Math.trunc(itCompanies.length / 2)]
+);
+itCompanies.forEach((e) => {
+  console.log(e);
+});
+itCompanies.forEach((e) => {
+  console.log(e.toUpperCase());
+});
+console.log(itCompanies.join(", "), " are bit IT companies");
+itCompanies.includes("Google")
+  ? console.log("Google")
+  : console.log("Company not found.");
+let filteredItCompanies = [];
+itCompanies.forEach((e) => {
+  let counter = 0;
+  for (i = 0; i < e.length; i++) {
+    if (e[i] == "o") {
+      counter++;
+    }
+  }
+  if (counter >= 2) {
+    filteredItCompanies.push(e);
+  }
+});
+console.log(itCompanies.sort());
+console.log(itCompanies.reverse());
+console.log(itCompanies.slice(0, 3));
+console.log(itCompanies.slice(3));
+console.log(itCompanies.slice(3, 1));
+console.log(itCompanies.splice(0, 3));
+console.log(itCompanies.splice(3, 3));
+console.log(itCompanies.splice(3, 1));
+console.log(itCompanies.splice(0));

solutions/day-01/array-level-3.js

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+const ages = [19, 22, 19, 24, 20, 25, 26, 24, 25, 24];
+
+ages.sort();
+const min = ages[0];
+const max = ages[ages.length - 1];
+
+let sum = 0;
+for (i = 0; i < ages.length; i++) {
+  sum += ages[i];
+}
+const average = sum / ages.length;
+const median = ages[Math.trunc(ages.length / 2)];
+const range = max - min;

solutions/day-01/countries.js

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+const countries = [
+  "Albania",
+  "Bolivia",
+  "Canada",
+  "Denmark",
+  "Ethiopia",
+  "Finland",
+  "Germany",
+  "Hungary",
+  "Ireland",
+  "Japan",
+  "Kenya",
+];

solutions/day-01/main.js

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+import { countries } from "countries.js";
+import { webTech } from "web_tech.js";
+
+let text =
+  "I love teaching and empowering people. I teach HTML, CSS, JS, React, Python.";
+console.split(" ,.");
+console.log(words);
+console.log(words.length);
+
+const shoppingCart = ["Milk", "Coffee", "Tea", "Honey"];
+shoppingCart.includes("Meat") ? () => {} : shoppingCart.unshift("Meat");
+shoppingCart.includes("Sugar") ? () => {} : shoppingCart.push("Sugar");
+shoppingCard.splice(2, 1, "Green Tea");
+
+const country = countries.indexOf("Ethiopia");
+if (country > 0) {
+  console.log(countries[country].toUpperCase());
+} else {
+  countries.push("Ethiopia");
+}
+
+const frontEnd = ["HTML", "CSS", "JS", "React", "Redux"];
+const backEnd = ["Node", "Express", "MongoDB"];
+
+const fullStack = frontend.concat(backend);
+
+console.log(fullStack);
+
+console.log(countries.slice(0, 10));
+console.log(countries[Math.trunc(countries.length / 2)]);
+
+const fhCountries = countries.splice(0, Math.round(countries.length / 2));

solutions/day-01/web_techs.js

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+const webTechs = [
+  "HTML",
+  "CSS",
+  "JavaScript",
+  "React",
+  "Redux",
+  "Node",
+  "MongoDB",
+];