[1] all set

K-Vishwak · Jul 14, 2023 · 9df0d64 · 9df0d64
2 parents 0dae602 + 6e355ba
commit 9df0d64
Show file tree

Hide file tree

Showing 31 changed files with 254 additions and 21 deletions.
diff --git a/js/functional_programming/.DS_Store b/js/functional_programming/.DS_Store
diff --git a/js/functional_programming/compare-scopes-of-the-var-and-let-keywords.txt b/js/functional_programming/compare-scopes-of-the-var-and-let-keywords.txt
@@ -0,0 +1,9 @@
+function checkScope() {
+  let i = 'function scope';
+  if (true) {
+  let i = 'block scope';
+    console.log('Block scope i is: ', i);
+  }
+  console.log('Function scope i is: ', i);
+  return i;
+}
diff --git a/js/functional_programming/complete-a-promise-with-resolve-and-reject.txt b/js/functional_programming/complete-a-promise-with-resolve-and-reject.txt
@@ -0,0 +1,10 @@
+const makeServerRequest = new Promise((resolve, reject) => {
+  // responseFromServer represents a response from a server
+  let responseFromServer;
+
+  if(responseFromServer) {
+    resolve('We got the data');
+  } else {  
+    reject('Data not received');
+  }
+});
diff --git a/js/functional_programming/create-a-javascript-promise.txt b/js/functional_programming/create-a-javascript-promise.txt
@@ -0,0 +1,3 @@
+const makeServerRequest = new Promise((resolve, reject) => {
+
+})
diff --git a/js/functional_programming/create-a-module-script.txt b/js/functional_programming/create-a-module-script.txt
@@ -0,0 +1,8 @@
+<html>
+  <body>
+    <!-- Only change code below this line -->
+<script type="module" src="index.js"></script>
+
+    <!-- Only change code above this line -->
+  </body>
+</html>
diff --git a/js/functional_programming/create-an-export-fallback-with-export-default.txt b/js/functional_programming/create-an-export-fallback-with-export-default.txt
@@ -0,0 +1,3 @@
+export default function subtract(x, y) {
+  return x - y;
+}
diff --git a/js/functional_programming/create-strings-using-template-literals.txt b/js/functional_programming/create-strings-using-template-literals.txt
@@ -0,0 +1,17 @@
+const result = {
+  success: ["max-length", "no-amd", "prefer-arrow-functions"],
+  failure: ["no-var", "var-on-top", "linebreak"],
+  skipped: ["no-extra-semi", "no-dup-keys"]
+};
+function makeList(arr) {
+  // Only change code below this line
+  const failureItems = [];
+  arr.forEach(item => {
+    failureItems.push(`<li class="text-warning">${item}</li>`);
+  });
+  // Only change code above this line
+
+  return failureItems;
+}
+
+const failuresList = makeList(result.failure);
diff --git a/js/functional_programming/handle-a-fulfilled-promise-with-then.txt b/js/functional_programming/handle-a-fulfilled-promise-with-then.txt
@@ -0,0 +1,14 @@
+const makeServerRequest = new Promise((resolve, reject) => {
+  // responseFromServer is set to true to represent a successful response from a server
+  let responseFromServer = true;
+
+  if(responseFromServer) {
+    resolve("We got the data");
+  } else {  
+    reject("Data not received");
+  }
+});
+
+makeServerRequest.then(result => {
+  console.log(result);
+});
diff --git a/js/functional_programming/handle-a-rejected-promise-with-catch.txt b/js/functional_programming/handle-a-rejected-promise-with-catch.txt
@@ -0,0 +1,18 @@
+const makeServerRequest = new Promise((resolve, reject) => {
+  // responseFromServer is set to false to represent an unsuccessful response from a server
+  let responseFromServer = false;
+
+  if(responseFromServer) {
+    resolve("We got the data");
+  } else {  
+    reject("Data not received");
+  }
+});
+
+makeServerRequest.then(result => {
+  console.log(result);
+});
+
+makeServerRequest.catch(error => {
+  console.log(error);
+});
diff --git a/js/functional_programming/import-a-default-export.txt b/js/functional_programming/import-a-default-export.txt
@@ -0,0 +1,4 @@
+import subtract from './math_functions.js';
+// Only change code above this line
+
+subtract(7,4);
diff --git a/js/functional_programming/learn-about-functional-programming.txt b/js/functional_programming/learn-about-functional-programming.txt
diff --git a/js/functional_programming/mutate-an-array-declared-with-const.txt b/js/functional_programming/mutate-an-array-declared-with-const.txt
@@ -0,0 +1,12 @@
+const s = [5, 7, 2];
+function editInPlace() {
+  // Only change code below this line
+s[0] = 2;
+s[1] = 5;
+s[2] = 7;
+return s;
+  // Using s = [2, 5, 7] would be invalid
+
+  // Only change code above this line
+}
+editInPlace();
diff --git a/js/functional_programming/prevent-object-mutation.txt b/js/functional_programming/prevent-object-mutation.txt
@@ -0,0 +1,16 @@
+function freezeObj() {
+  const MATH_CONSTANTS = {
+    PI: 3.14
+  };
+  // Only change code below this line
+Object.freeze(MATH_CONSTANTS);
+
+  // Only change code above this line
+  try {
+    MATH_CONSTANTS.PI = 99;
+  } catch(ex) {
+    console.log(ex);
+  }
+  return MATH_CONSTANTS.PI;
+}
+const PI = freezeObj();
diff --git a/js/functional_programming/reuse-javascript-code-using-import.txt b/js/functional_programming/reuse-javascript-code-using-import.txt
@@ -0,0 +1,6 @@
+
+import {uppercaseString, lowercaseString } from  './string_functions.js';
+// Only change code above this line
+
+uppercaseString("hello");
+lowercaseString("WORLD!");
diff --git a/js/functional_programming/set-default-parameters-for-your-functions.txt b/js/functional_programming/set-default-parameters-for-your-functions.txt
@@ -0,0 +1,3 @@
+// Only change code below this line
+const increment = (number, value = 1) => number + value;
+// Only change code above this line
diff --git a/js/functional_programming/use--to-import-everything-from-a-file.txt b/js/functional_programming/use--to-import-everything-from-a-file.txt
@@ -0,0 +1,5 @@
+import * as stringFunctions from './string_functions.js';
+// Only change code above this line
+
+stringFunctions.uppercaseString("hello");
+stringFunctions.lowercaseString("WORLD!");
diff --git a/js/functional_programming/use-arrow-functions-to-write-concise-anonymous-functions.txt b/js/functional_programming/use-arrow-functions-to-write-concise-anonymous-functions.txt
@@ -0,0 +1 @@
+const magic = () => new Date();
diff --git a/js/functional_programming/use-class-syntax-to-define-a-constructor-function.txt b/js/functional_programming/use-class-syntax-to-define-a-constructor-function.txt
@@ -0,0 +1,11 @@
+// Only change code below this line
+class Vegetable {
+ name;
+  constructor(test) {
+    this.name = test;
+  }
+}
+// Only change code above this line
+
+const carrot = new Vegetable('carrot');
+console.log(carrot.name); // Should display 'carrot'
diff --git a/js/functional_programming/use-destructuring-assignment-to-assign-variables-from-arrays.txt b/js/functional_programming/use-destructuring-assignment-to-assign-variables-from-arrays.txt
@@ -0,0 +1,3 @@
+let a = 8, b = 6;
+// Only change code below this line
+[a,b] = [b,a];
diff --git a/...onal_programming/use-destructuring-assignment-to-assign-variables-from-nested-objects.txt b/...onal_programming/use-destructuring-assignment-to-assign-variables-from-nested-objects.txt
@@ -0,0 +1,11 @@
+const LOCAL_FORECAST = {
+  yesterday: { low: 61, high: 75 },
+  today: { low: 64, high: 77 },
+  tomorrow: { low: 68, high: 80 }
+};
+
+// Only change code below this line
+
+const {today: {low: lowToday, high: highToday }} = LOCAL_FORECAST;
+
+// Only change code above this line
diff --git a/js/functional_programming/use-destructuring-assignment-to-assign-variables-from-objects.txt b/js/functional_programming/use-destructuring-assignment-to-assign-variables-from-objects.txt
@@ -0,0 +1,11 @@
+const HIGH_TEMPERATURES = {
+  yesterday: 75,
+  today: 77,
+  tomorrow: 80
+};
+
+// Only change code below this line
+
+const {today: highToday, tomorrow: highTomorrow  }  = HIGH_TEMPERATURES;
+
+// Only change code above this line
diff --git a/js/functional_programming/use-destructuring-assignment-to-extract-values-from-objects.txt b/js/functional_programming/use-destructuring-assignment-to-extract-values-from-objects.txt
@@ -0,0 +1,11 @@
+const HIGH_TEMPERATURES = {
+  yesterday: 75,
+  today: 77,
+  tomorrow: 80
+};
+
+// Only change code below this line
+
+const {today, tomorrow} = HIGH_TEMPERATURES;
+
+// Only change code above this line
diff --git a/..._programming/use-destructuring-assignment-to-pass-an-object-as-a-functions-parameters.txt b/..._programming/use-destructuring-assignment-to-pass-an-object-as-a-functions-parameters.txt
@@ -0,0 +1,12 @@
+const stats = {
+  max: 56.78,
+  standard_deviation: 4.34,
+  median: 34.54,
+  mode: 23.87,
+  min: -0.75,
+  average: 35.85
+};
+
+// Only change code below this line
+const half = ({max, min}) => (max + min) / 2.0; 
+// Only change code above this line
diff --git a/...mming/use-destructuring-assignment-with-the-rest-parameter-to-reassign-array-elements.txt b/...mming/use-destructuring-assignment-with-the-rest-parameter-to-reassign-array-elements.txt
@@ -0,0 +1,8 @@
+const source = [1,2,3,4,5,6,7,8,9,10];
+function removeFirstTwo(list) {
+  // Only change code below this line
+  const [a,b,...arr] = list; // Change this line
+  // Only change code above this line
+  return arr;
+}
+const arr = removeFirstTwo(source);
diff --git a/js/functional_programming/use-export-to-share-a-code-block.txt b/js/functional_programming/use-export-to-share-a-code-block.txt
@@ -0,0 +1,9 @@
+const uppercaseString = (string) => {
+  return string.toUpperCase();
+}
+
+const lowercaseString = (string) => {
+  return string.toLowerCase()
+}
+
+export {uppercaseString, lowercaseString};
diff --git a/js/functional_programming/use-getters-and-setters-to-control-access-to-an-object.txt b/js/functional_programming/use-getters-and-setters-to-control-access-to-an-object.txt
@@ -0,0 +1,21 @@
+// Only change code below this line
+
+  class Thermostat {
+  constructor(fahrenheit) {
+    this.fahrenheit = fahrenheit;
+  }
+
+  get temperature() {
+    return (5 / 9) * (this.fahrenheit - 32);
+  }
+
+  set temperature(celsius) {
+    this.fahrenheit = (celsius * 9.0) / 5 + 32;
+  }
+}
+// Only change code above this line
+
+const thermos = new Thermostat(76); // Setting in Fahrenheit scale
+let temp = thermos.temperature; // 24.44 in Celsius
+thermos.temperature = 26;
+temp = thermos.temperature; // 26 in Celsius
diff --git a/js/functional_programming/use-the-rest-parameter-with-function-parameters.txt b/js/functional_programming/use-the-rest-parameter-with-function-parameters.txt
@@ -0,0 +1 @@
+const sum = (...args) => args.reduce((a, b) => a + b, 0);
diff --git a/js/functional_programming/use-the-spread-operator-to-evaluate-arrays-in-place.txt b/js/functional_programming/use-the-spread-operator-to-evaluate-arrays-in-place.txt
@@ -0,0 +1,6 @@
+const arr1 = ['JAN', 'FEB', 'MAR', 'APR', 'MAY'];
+let arr2;
+
+arr2 = [...arr1];  // Change this line
+
+console.log(arr2);
diff --git a/js/functional_programming/write-arrow-functions-with-parameters.txt b/js/functional_programming/write-arrow-functions-with-parameters.txt
@@ -0,0 +1,4 @@
+const myConcat = (arr1, arr2) => arr1.concat(arr2);
+
+
+console.log(myConcat([1, 2], [3, 4, 5]));
diff --git a/js/functional_programming/write-concise-declarative-functions-with-es6.txt b/js/functional_programming/write-concise-declarative-functions-with-es6.txt
@@ -0,0 +1,8 @@
+// Only change code below this line
+const bicycle = {
+  gear: 2,
+  setGear(newGear) { this.gear = newGear}
+};
+// Only change code above this line
+bicycle.setGear(3);
+console.log(bicycle.gear);
diff --git a/...programming/write-concise-object-literal-declarations-using-object-property-shorthand.txt b/...programming/write-concise-object-literal-declarations-using-object-property-shorthand.txt
@@ -0,0 +1,9 @@
+const createPerson = (name, age, gender) => {
+  // Only change code below this line
+  return {
+  name,
+  age,
+  gender
+  };
+  // Only change code above this line
+};