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HW#6 Khyzhniak #23

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1 of 2 Tasks done.
dmytro-khyzhniak Mar 14, 2021
ae983d5
Improved Task #1. Added solution of the Task #2.
dmytro-khyzhniak Mar 17, 2021
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Added Task description.
dmytro-khyzhniak Mar 17, 2021
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70 changes: 70 additions & 0 deletions HW6(Async-RegExp)/HW6_Khyzhniak.js
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// One of the most common tasks is to validate the user's email and password.
// Write two regular expressions,
// one of which will validate the email for spelling validity

const emailsToCheck = [
// CHECK FOR CASE SENSIVITY
'example@gmail.com', // ✅ | Case doesn`t matter
'EXAMPLE@GMAIL.COM', // ✅
'ExAmPlE@mail.ru', // ✅
// CHECK FOR SPACES BEFORE AND AFTER EMAIL
' example@gmail.com ', // ✅ | we can ignore spaces
' example@gmail.com', // ✅ | we can ignore spaces
'example@gmail.com ', // ✅ | we can ignore spaces
// CHECK FOR LENGTH
'exmpl@mail.ru', // ✅ | Let`s say the name of an email must be >= 5 characters
'exmp@gmail.ru', // ❗️ | < 5
'exm@mail.ru', // ❗️ | < 5
// CHECK FOR ORDER OR MISSING PARTS
'example @gmail.com', // ❗️ | space inside of enmail is not allowed
'example@gmail. com', // ❗️ | space inside of enmail is not allowed
'example@mailru', // ❗️ | dot is missing
'exmple@mailru.', // ❗️ | there is no domain name
'.example@mailru', // ❗️ | domain name must be after @
'exm@.mailru', // ❗️ | there isn`t anything before @
'exm@.', // ❗️ | domain name is missing
'examplemail.ua', // ❗️ | @ is missing
'@examplemail.ua', // ❗️ | @ is in the beginning
'examplemail.ua@', // ❗️ | @ is in the end
// CHECK FOR NUMBERS
'example12@gmail.com', // ✅ | numbers in the email name is allowed
'12example@gmail.com', // ✅ | numbers in the email name is allowed
'example@12gmail.com', // ❗️ | numbers in the domain name is not allowed
'example@gmail.12', // ❗️ | numbers in the domain name is not allowed
// CHECK FOR OTHER CHARACTERS
'ex!ample@gmail.com', // ❗️ | other characters is not allowed
'ex?ample@gmail.com', // ❗️ | other characters is not allowed
'ex,ample@gmail.com', // ❗️ | other characters is not allowed
'ex@..a@mple@gmail.com', // ❗️ | other characters is not allowed
'ex.ample@gmail.com' // ❗️ | other characters is not allowed
];

for (const email of emailsToCheck) {
if (/^\s*\w{5,}@[a-z]+\.[a-z]+\s*$/i.test(email)) {
console.log(`${email} is valid ✅`);
} else {
console.log(`${email} is not valid ❗️`);
}
}

// and the second that will validate the password according to basic rules
// (only Latin and numbers, and a special character are allowed ' ?,!, @, -, +, = '. Large and small letters must be present, the password is at least 8 characters long)

const passwordsToCheck = [
'Exaaaaaaaammmmmpppleeeeee13333333777', // ✅
'Example137', // ✅
'Ex@mp!e137', // ✅
'example137', // ❗️ | There are no capital letters
'Exampleeee', // ❗️ | There are no digits
'Example', // ❗️ | < 8
'Examp12', // ❗️ | < 8
'ex12', // ❗️ | < 8
];

for (const pass of passwordsToCheck) {
if (/^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])[\w\?\,\!\@\-\+\=]{8,}$/.test(pass)) {
console.log(`${pass} is valid ✅`);
} else {
console.log(`${pass} is not valid ❗️`);
}
}