Re-organised files and folders

Author: Yasholo

JavaScript Algorithms and Data Structures/02-ES6/01.Compare-Scopes-of-the-var-and-let-Keywords_script.js

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+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;
+  }

JavaScript Algorithms and Data Structures/02-ES6/02.Mutate-an-Array-Declared-with-const_script.js

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+const s = [5, 7, 2];
+function editInPlace() {
+
+s[0] = 2;
+s[1] = 5;
+s[2] = 7;
+console.log(s);
+}
+editInPlace();

JavaScript Algorithms and Data Structures/02-ES6/03.Prevent-Object-Mutation_script.js

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+function freezeObj() {
+    const MATH_CONSTANTS = {
+      PI: 3.14
+    };
+  Object.freeze(MATH_CONSTANTS);
+    try {
+      MATH_CONSTANTS.PI = 99;
+    } catch(ex) {
+      console.log(ex);
+    }
+    return MATH_CONSTANTS.PI;
+  }
+  const PI = freezeObj();

JavaScript Algorithms and Data Structures/02-ES6/04.Use-Arrow-Functions-to-Write-Concise-Anonymous-Functions_script.js

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+const magic = () => {
+    return new Date();
+  };

JavaScript Algorithms and Data Structures/02-ES6/05.Write-Arrow-Functions-with-Parameters_script.js

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+const myConcat = (arr1, arr2) => {
+    return arr1.concat(arr2);
+  };
+  
+  console.log(myConcat([1, 2], [3, 4, 5]));

JavaScript Algorithms and Data Structures/02-ES6/06.Set-Default-Parameters-for-Your-Functions_script.js

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+const increment = (number, value = 1) => number + value;

JavaScript Algorithms and Data Structures/02-ES6/07.Use-the-Rest-Parameter-with-Function-Parameters_script.js

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+const sum = (...args) => {
+    return args.reduce((a, b) => a + b, 0);
+  }
+  

JavaScript Algorithms and Data Structures/02-ES6/08.Use-the-Spread-Operator-to-Evaluate-Arrays-In-Place_script.js

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+const arr1 = ['JAN', 'FEB', 'MAR', 'APR', 'MAY'];
+let arr2;
+
+arr2 = [...arr1]; 
+
+console.log(arr2);

JavaScript Algorithms and Data Structures/02-ES6/09.Use-Destructuring-Assignment-to-Extract-Values-from-Objects_script.js

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+const HIGH_TEMPERATURES = {
+    yesterday: 75,
+    today: 77,
+    tomorrow: 80
+  };
+  
+  const {today, tomorrow} = HIGH_TEMPERATURES;
+  

JavaScript Algorithms and Data Structures/02-ES6/10.Use-Destructuring-Assignment-to-Assign-Variables-from-Objects_script.js

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+const HIGH_TEMPERATURES = {
+    yesterday: 75,
+    today: 77,
+    tomorrow: 80
+  };
+  
+  const { today: highToday, tomorrow: highTomorrow } = HIGH_TEMPERATURES;
+  

JavaScript Algorithms and Data Structures/02-ES6/11.Use-Destructuring-Assignment to-Assign-Variables-from-Nested-Objects_script.js

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+const LOCAL_FORECAST = {
+    yesterday: { low: 61, high: 75 },
+    today: { low: 64, high: 77 },
+    tomorrow: { low: 68, high: 80 }
+  };
+  
+  const { today: { low: lowToday, high: highToday }} = LOCAL_FORECAST;
+  

JavaScript Algorithms and Data Structures/02-ES6/12.Use-Destructuring-Assignment-to-Assign-Variables-from-Arrays_script.js

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+let a = 8, b = 6;
+[a, b] = [b, a];

JavaScript Algorithms and Data Structures/02-ES6/13.Use-Destructuring-Assignment-with-the-Rest-Parameter-to-Reassign-Array-Elements_script.js

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+const source = [1,2,3,4,5,6,7,8,9,10];
+function removeFirstTwo(list) {
+
+  const [,,...arr] = list;
+  return arr;
+}
+const arr = removeFirstTwo(source);

JavaScript Algorithms and Data Structures/02-ES6/14.Use-Destructuring-Assignment-to-Pass-an-Object-as-a-Function's-Parameters_script.js

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+const stats = {
+    max: 56.78,
+    standard_deviation: 4.34,
+    median: 34.54,
+    mode: 23.87,
+    min: -0.75,
+    average: 35.85
+  };
+  
+  const half = ({ max, min }) => (max + min) / 2.0;
+  

JavaScript Algorithms and Data Structures/02-ES6/15.Create-Strings-using-Template-Literals_script.js

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+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) {
+    const failureItems = [];
+      for (let i = 0; i < arr.length; i++) {
+      failureItems.push(`<li class="text-warning">${arr[i]}</li>`);
+    }
+  
+    return failureItems;
+  }
+  
+  const failuresList = makeList(result.failure);

JavaScript Algorithms and Data Structures/02-ES6/16.Write-Concise-Object-Literal-Declarations-Using-Object-Property-Shorthand_script.js

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+const createPerson = (name, age, gender) => ({name, age, gender});

JavaScript Algorithms and Data Structures/02-ES6/17.Write-Concise-Declarative-Functions-with-ES6_script.js

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+const bicycle = {
+    gear: 2,
+    setGear(newGear) {
+      this.gear = newGear;
+    }
+  };
+  bicycle.setGear(3);
+  console.log(bicycle.gear);

JavaScript Algorithms and Data Structures/02-ES6/18.Use-class-Syntax-to-Define-a-Constructor-Function_script.js

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+class Vegetable {
+    constructor(name) {
+      this.name = name;
+    }
+  }
+  
+  const carrot = new Vegetable('carrot');
+  console.log(carrot.name);

JavaScript Algorithms and Data Structures/02-ES6/19.Use-getters-and-setters-to-Control-Access-to-an-Object_script.js

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+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;
+  }
+}

JavaScript Algorithms and Data Structures/02-ES6/20.Create-a-Module-Script_index.html

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+<html>
+  <body>
+<script type="module" src="index.js"></script>
+  </body>
+</html>

JavaScript Algorithms and Data Structures/02-ES6/21.Use-export-to-Share-a-Code-Block_script.js

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+export const uppercaseString = (string) => {
+    return string.toUpperCase();
+  }
+  
+  export const lowercaseString = (string) => {
+    return string.toLowerCase()
+  }

JavaScript Algorithms and Data Structures/02-ES6/22.Reuse-JavaScript-Code-Using-import_script.js

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+import { uppercaseString } from './string_functions.js';
+import { lowercaseString } from './string_functions.js';
+
+uppercaseString("hello");
+lowercaseString("WORLD!");

JavaScript Algorithms and Data Structures/02-ES6/23.Use-to-Import-Everything-from-a-File_script.js

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+import * as stringFunctions from "./string_functions.js";
+
+stringFunctions.uppercaseString("hello");
+stringFunctions.lowercaseString("WORLD!");

JavaScript Algorithms and Data Structures/02-ES6/24.Create-an-Export-Fallback-with-export-default_script.js

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+export default function subtract(x, y) {
+    return x - y;
+  }

JavaScript Algorithms and Data Structures/02-ES6/25.Import-a-Default-Export_script.js

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+import subtract from "./math_functions.js";
+
+subtract(7,4);

JavaScript Algorithms and Data Structures/02-ES6/26.Create-a-JavaScript-Promise_script.js

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+const makeServerRequest = new Promise((resolve, reject) => {
+
+});

JavaScript Algorithms and Data Structures/02-ES6/27.Complete-a-Promise-with-resolve-and-reject_script.js

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+const makeServerRequest = new Promise((resolve, reject) => {
+
+    let responseFromServer;
+    if(responseFromServer) {
+      resolve("We got the data");
+    } else {  
+      reject("Data not received");
+    }
+  });

JavaScript Algorithms and Data Structures/02-ES6/28.Handle-a-Fulfilled-Promise-with-then_script.js

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+const makeServerRequest = new Promise((resolve, reject) => {
+
+    let responseFromServer = true;
+      
+    if(responseFromServer) {
+      resolve("We got the data");
+    } else {  
+      reject("Data not received");
+    }
+  });
+  
+  makeServerRequest.then(result => {
+    console.log(result);
+  });

JavaScript Algorithms and Data Structures/02-ES6/29.Handle-a-Rejected-Promise-with-catch_script.js

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+const makeServerRequest = new Promise((resolve, reject) => {
+
+    let responseFromServer = false;
+      
+    if(responseFromServer) {
+      resolve("We got the data");
+    } else {  
+      reject("Data not received");
+    }
+  });
+  
+  makeServerRequest.catch(error  => {
+    console.log(error );
+  });

JavaScript Algorithms and Data Structures/02-ES6/moverenamefile.sh

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+#!/bin/bash
+
+# Define the parent directory
+parent_directory="/mnt/a57ccb77-a765-4dca-b87c-b337ac842dee/Sharedvm/FreeCodeCamp-JavaScript-Algorithms-and-Data-Structures/ES6"
+
+# Define the destination directory
+destination_directory="/mnt/a57ccb77-a765-4dca-b87c-b337ac842dee/Sharedvm/FreeCodeCamp-JavaScript-Algorithms-and-Data-Structures/nf"
+
+# Iterate through directories in the parent directory
+for dir in "$parent_directory"/*/; do
+    # Extract the directory name
+    dirname=$(basename "$dir")
+
+    # Move files from each directory to the destination directory and rename them
+    find "$dir" -type f -exec bash -c 'mv "$1" "$2"/"$3_${1##*/}"' bash {} "$destination_directory" "$dirname" \;
+done

JavaScript Algorithms and Data Structures/03-Regular-Expressions/01.Using-the-Test-Method_script.js

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+let myString = "Hello, World!";
+let myRegex = /Hello/;
+let result = myRegex.test(myString);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/02.Match-Literal-Strings_script.js

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+let waldoIsHiding = "Somewhere Waldo is hiding in this text.";
+let waldoRegex = /Waldo/;
+let result = waldoRegex.test(waldoIsHiding);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/03.Match-a-Literal-String-with-Different-Possibilities_script.js

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+let petString = "James has a pet cat.";
+let petRegex = /cat|dog|fish|bird/;
+let result = petRegex.test(petString);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/04.Ignore-Case-While-Matching_script.js

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+let myString = "freeCodeCamp";
+let fccRegex = /freeCodeCamp/i;
+let result = fccRegex.test(myString);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/05.Extract-Matches_script.js

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+let extractStr = "Extract the word 'coding' from this string.";
+let codingRegex = /coding/; 
+let result = extractStr.match(codingRegex); 

JavaScript Algorithms and Data Structures/03-Regular-Expressions/06.Find-More-Than-the-First-Match_script.js

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+let twinkleStar = "Twinkle, twinkle, little star";
+let starRegex = /twinkle/ig;
+let result = twinkleStar.match(starRegex);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/07.Match-with-Wildcard-Period_script.js

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+let exampleStr = "Let's have fun with regular expressions!";
+let unRegex = /.un/;
+let result = unRegex.test(exampleStr);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/08.Match-Single-with-Multiple-Possibilities_script.js

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+let quoteSample = "Beware of bugs in the above code; I have only proved it correct, not tried it.";
+let vowelRegex = /[aeiou]/gi;
+let result = quoteSample.match(vowelRegex);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/09.Match-Letters-of-the-Alphabet_script.js

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+let quoteSample = "The quick brown fox jumps over the lazy dog.";
+let alphabetRegex = /[a-z]/gi;
+let result = quoteSample.match(alphabetRegex)

JavaScript Algorithms and Data Structures/03-Regular-Expressions/10.Match-Numbers-and-Letters-of-the-Alphabet_script.js

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+let quoteSample = "Blueberry 3.141592653s are delicious.";
+let myRegex = /[h-s2-6]/ig;
+let result = quoteSample.match(myRegex);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/11.Match-Single-Characters-Not-Specified_script.js

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+let quoteSample = "3 blind mice.";
+let myRegex = /[^aeiou0-9]/ig;
+let result = quoteSample.match(myRegex);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/12.Match-Characters-that-Occur-One-or-More-Times_script.js

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+let difficultSpelling = "Mississippi";
+let myRegex = /s+/ig;
+let result = difficultSpelling.match(myRegex);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/13.Match-Characters-that-Occur-Zero-or-More-Times_script.js

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+let chewieRegex = /A+a*/;
+
+let result = chewieQuote.match(chewieRegex);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/14.Find-Characters-with-Lazy-Matching_script.js

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+let text = "<h1>Winter is coming</h1>";
+let myRegex = /<.*?>/;
+let result = text.match(myRegex);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/15.Find-One-or-More-Criminals-in-a-Hunt_script.js

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+let reCriminals = /C+/;

JavaScript Algorithms and Data Structures/03-Regular-Expressions/16.Match-Beginning-String-Patterns_script.js

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+let rickyAndCal = "Cal and Ricky both like racing.";
+let calRegex = /^Cal/;
+let result = calRegex.test(rickyAndCal);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/17.Match-Ending-String-Patterns_script.js

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+let caboose = "The last car on a train is the caboose";
+let lastRegex = /caboose$/;
+let result = lastRegex.test(caboose);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/18.Match-All-Letters-and-Numbers_script.js

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+let quoteSample = "The five boxing wizards jump quickly.";
+let alphabetRegexV2 = /\w/g;
+let result = quoteSample.match(alphabetRegexV2).length;

JavaScript Algorithms and Data Structures/03-Regular-Expressions/20.Match-All-Numbers_script.js

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+let movieName = "2001: A Space Odyssey";
+let numRegex = /\d/g;
+let result = movieName.match(numRegex).length;

JavaScript Algorithms and Data Structures/03-Regular-Expressions/21.Match-All-Non-Numbers_script.js

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+let movieName = "2001: A Space Odyssey";
+let noNumRegex = /\D/g;
+let result = movieName.match(noNumRegex).length;

JavaScript Algorithms and Data Structures/03-Regular-Expressions/22.Restrict-Possible-Usernames_script.js

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+let username = "JackOfAllTrades";
+let userCheck = /^[a-z][a-z]+\d*$|^[a-z]\d\d+$/i;
+let result = userCheck.test(username);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/23.Match-Whitespace_script.js

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+let sample = "Whitespace is important in separating words";
+let countWhiteSpace = /\s/g;
+let result = sample.match(countWhiteSpace);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/24.Match-Non-Whitespace-Characters_script.js

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+let sample = "Whitespace is important in separating words";
+let countNonWhiteSpace = /\S/g;
+let result = sample.match(countNonWhiteSpace);

JavaScript Algorithms and Data Structures/03-Regular-Expressions/25.Specify Upper-and-Lower-Number-of-Matches_script.js

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+let ohStr = "Ohhh no";
+let ohRegex = /Oh{3,6}\sno/;
+let result = ohRegex.test(ohStr);