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