console.log("Hello from JavaScript"); let sentence = "The dog chased the cat."
let regex = /the/
let myString = "Hello, World!";
let myRegex = /Hello/;
let result = myRegex.test(myString); let waldoIsHiding = "Somewhere Waldo is hiding in this text.";
let waldoRegex = /Waldo/;
let result = waldoRegex.test(waldoIsHiding); let petString = "James has a pet cat.";
let petRegex = /dog|cat|bird|fish/;
let result = petRegex.test(petString); let myString = "freeCodeCamp";
let fccRegex = /freecodecamp/i; // Change this line
let result = fccRegex.test(myString); let extractStr = "Extract the word 'coding' from this string.";
let codingRegex = /coding/;
let result = extractStr.match(codingRegex);
console.log(result); let testStr = "Repeat, Repeat, Repeat";
let ourRegex = /Repeat/g;
testStr.match(ourRegex);
let twinkleStar = "Twinkle, twinkle, little star";
let starRegex = /twinkle/ig;
let result = twinkleStar.match(starRegex);
console.log(result); let humStr = "I'll hum a song";
let hugStr = "Bear hug";
let huRegex = /hu./;
humStr.match(huRegex); // Returns ["hum"]
hugStr.match(huRegex); // Returns ["hug"]
let exampleStr = "Let's have fun with regular expressions!";
let unRegex = /.un/;
let result = unRegex.test(exampleStr);
console.log(result); let bgRegex = /b[aiu]g/;
let quoteSample = "Beware of bugs in the above code; I have only proved it correct, not tried it.";
let vowelRegex = /[aeiou]/ig;
let result = quoteSample.match(vowelRegex);
console.log(result); let quoteSample = "The quick brown fox jumps over the lazy dog.";
let alphabetRegex = /[a-z]/ig;
let result = quoteSample.malphabetRegex;
console.log(result); let quoteSample = "Blueberry 3.141592653s are delicious.";
let myRegex = /[2-6h-s]/ig;
let result = quoteSample.match(myRegex);
console.log(result); let quoteSample = "3 blind mice.";
let myRegex = /change/;
let result = myRegex;
console.log(result); let difficultSpelling = "Mississipspi";
let myRegex = /s+/g;
let result = difficultSpelling.match(myRegex);
console.log(result); let soccerWord = "gooooooooal!";
let gPhrase = "gut feeling";
let oPhrase = "over the moon";
let goRegex = /go*/;
soccerWord.match(goRegex); // Returns ["goooooooo"]
gPhrase.match(goRegex); // Returns ["g"]
oPhrase.match(goRegex); // Returns null
let chewieQuote = "Aaaaaaaaaaaaaaaarrrgh!";
let chewieRegex = /Aa*/; // Change this line
let result = chewieQuote.match(chewieRegex);
console.log(result); let string = "titanic";
let regex = /t[a-z]*?i/;
string.match(regex);
let text = "<h1>Winter is coming</h1>";
let myRegex = /<.*>/;
let result = text.match(myRegex);
console.log(result); let crowd = 'P1P2P3P4P5P6CCCP7P8P9';
let reCriminals = /C+/; // Change this line
let matchedCriminals = crowd.match(reCriminals);
console.log(matchedCriminals); let rickyAndCal = "Cal and Ricky both like racing.";
let calRegex = /^/; // Change this line
let result = calRegex.test(rickyAndCal);
console.log(result); let caboose = "The last car on a caboose train is the ";
let lastRegex = /caboose$/; // Change this line
let result = lastRegex.test(caboose);
console.log(result); let quoteSample = "The five boxing wizards jump quickly.";
let alphabetRegexV2 = /\w/g; // Change this line
let result = quoteSample.match(alphabetRegexV2).length;
console.log(result); let quoteSample = "The five boxing wizards jump quickly.";
let nonAlphabetRegex = /\W/; // Change this line
let result = quoteSample.match(nonAlphabetRegex).length;
console.log(result); let numString = "Your sandwich will be $5.00";
let numRegex = /\d/g; // Change this line
let result = numString.match(numRegex).length;
console.log(result); let numString = "Your sandwich will be $5.00";
let noNumRegex = /\d/g; // Change this line
let result = numString.match(noNumRegex).length;
console.log(result); /*
1) If there are numbers, they must be at the end.
2) Letters can be lowercase and uppercase.
3) At least two characters long. Two-letter names can't have numbers.
*/
let username = "JackOfAllTrades";
let userCheck = /^[A-Za-z]{2,}/; // Change this line
let result = userCheck.test(username); let sample = "Whitespace is important in separating words";
let countWhiteSpace = /\s/g; // Change this line
let result = sample.match(countWhiteSpace);
console.log(result); let sample = "Whitespace is important in separating words";
let countWhiteSpace = /\s/g; // Change this line
let result = sample.match(countWhiteSpace);
console.log(result); let ohStr = "Ohhh no";
let ohRegex = /Oh{3,6} no/; // Change this line
let result = ohRegex.test(ohStr); let ohStr = "Ohhh no";
let ohRegex = /Oh{3,6} no/; // Change this line
let result = ohRegex.test(ohStr); let timStr = "Timmmmber";
let timRegex = /Tim/; // Change this line
let result = timRegex.test(timStr); let favWord = "favorite";
let favRegex = /favou?rite/; // Change this line
let result = favRegex.test(favWord); let quit = "qu";
let noquit = "qt";
let quRegex= /q(?=u)/;
let qRegex = /q(?!u)/;
quit.match(quRegex); // Returns ["q"]
noquit.match(qRegex); // Returns ["q"]
let sampleWord = "astronaut";
let pwRegex = /(?=\w{5})/; // Change this line
let result = pwRegex.test(sampleWord); let repeatStr = "regex regex";
let repeatRegex = /(\w+)\s\1/;
repeatRegex.test(repeatStr); // Returns true
repeatStr.match(repeatRegex); // Returns ["regex regex", "regex"]
let repeatNum = "42 42 42 42";
let reRegex = /(\d+)\s\1\s\1/; // Change this line
let result = reRegex.test(repeatNum); let wrongText = "The sky is silver.";
let silverRegex = /silver/;
wrongText.replace(silverRegex, "blue");
// Returns "The sky is blue."
"Code Camp".replace(/(\w+)\s(\w+)/, '$2 $1');
// Returns "Camp Code"
let huhText = "This sandwich is good.";
let fixRegex = /change/; // Change this line
let replaceText = ""; // Change this line
let result = huhText.replace(fixRegex, replaceText); let hello = " Hello, World! ";
let wsRegex = /^\s+|\s+$/g; // Change this line
let result = hello; // Change this line
console.log(result); console.log("Congratulations!!!");
// JavaScript Projects: https://www.youtube.com/playlist?list=PLWKjh