10 examples of 'username validation in javascript' in JavaScript

10
function validateUsername() {
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    var username = $('#username').val();
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    console.log(username);
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    if (username.match(nameRegex) != null) {
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        if (username.length <= 8) {
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            window.location.replace('/chat/' + username);
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        } else {
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            alert("Username is not valid. Maximum 8 characters allowed.");
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        }
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    } else {
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        alert("Username is not valid. Only characters letters, numbers and '_' are  acceptable.");
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    }
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};

73
function checkUsername(username){
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	var reg=/^[0-9A-Za-z_]{6,}$/;
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	if(username.match(reg))
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		return true;
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	return false;
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}

1
function validateUsernameInput(username) {
2
  if (!username) {
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    throw new Error('Username required as input');
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  }
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  if (typeof username !== 'string') {
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    throw new Error('Add username as string');
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  }
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}

181
public async validatePassword(password: string): Promise {
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	try {
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		const isMatch = await bcrypt.compare(password, this.password);
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		return isMatch;
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	} catch (error) {
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		return error;
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	}
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}

32
function isValidUsername(username) {
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  return username && username.length >= USERNAME_MIN_SIZE && !forbiddenCaracters.test(username);
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}

10
function validateEmail (email) {
11
  if (email && email.match(/^(([^<>()\[\]\.,;:\s@\"]+(\.[^<>()\[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/i)) {
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    return true
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  }
14
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  return false
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}

36
isValidEmail() {
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  // to validate email we could use joi (only put this in an info box)
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  return this.state.email;
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}

94
private async validateUser(email: string, password: string): Promise {
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  const user: User | undefined = await this.userService.findOneByEmail(email);
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  if (user && await bcrypt.compare(password, user.password)) {
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    const { password, ...result } = user;
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    return result;
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  }
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  return null;
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}

20
function validate_email(email)
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{
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	var emailReg = /\S+@\S+\.\S+/;
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	if(!emailReg.test(email)) {
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		return false;
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	}
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	return true;
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}

13
async validateUser(username: string, pass: string): Promise {
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  const user = await this.usersService.findOne(username);
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  if (user && (await compare(pass, user.password!))) {
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    return classToPlain(user) as User;
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  }
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  return undefined;
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}