Sample code for implementing login and registration template in Vue

<template>
	<p class="login">
		<el-tabs v-model="activeName" @tab-click="handleClick">
			<el-tab-pane label="Login" name="first">
				<el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
					<el-form-item label="Name" prop="name"><el-input v-model="ruleForm.name"></el-input></el-form-item>
 
					<el-form-item label="Password" prop="pass"><el-input type="password" v-model="ruleForm.pass" auto-complete="off"></el-input></el-form-item>
 
					<el-form-item>
						<el-button type="primary" @click="submitForm('ruleForm')">Login</el-button>
 
						<el-button @click="resetForm('ruleForm')">Reset</el-button>
					</el-form-item>
				</el-form>
			</el-tab-pane>
 
			<el-tab-pane label="Register" name="second">
				<register></register>
			</el-tab-pane>
		</el-tabs>
	</p>
</template>
 
<script>
import register from '@/components/register';
 
export default {
	data() {
		var validatePass = (rule, value, callback) => {
			if (value === '') {
				callback(new Error('Please enter your password'));
			} else {
				if (this.ruleForm.checkPass !== '') {
					this.$refs.ruleForm.validateField('checkPass');
				}
 
				callback();
			}
		};
 
		return {
			activeName: 'first',
			ruleForm: {
				name: '',
				pass: '',
				checkPass: ''
			},
			rules:
				name: [{ required: true, message: 'Please enter your name', trigger: 'blur' }, { min: 2, max: 5, message: 'Length must be between 2 and 5 characters', trigger: 'blur' }],
				pass: [{ required: true, validator: validatePass, trigger: 'blur' }]
			}
		};
	},
 
	methods: {
		//Tab switching handleClick(tab, event) {},
		//Reset the form resetForm(formName) {
			this.$refs[formName].resetFields();
		},
		//Submit the form submitForm(formName) {
			this.$refs[formName].validate(valid => {
				if (valid) {
					this.$message({
						type: 'success',
						message: 'Login successful'
					});
					this.$router.push('home');
				} else {
					console.log('error submit!!');
					return false;
				}
			});
		}
	},
	components:
		register
	}
};
</script>
 
<style lang="scss">
.login {
	width: 400px;
	margin: 0 auto;
}
 
.el-tabsitem {
	text-align: center;
	width: 60px;
}
</style>

//register component <template>
	<el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
		<el-form-item label="username" prop="name"><el-input v-model="ruleForm.name"></el-input></el-form-item>
		<el-form-item label="Password" prop="pass"><el-input type="password" v-model="ruleForm.pass" auto-complete="off"></el-input></el-form-item>
		<el-form-item label="Confirm Password" prop="checkPass"><el-input type="password" v-model="ruleForm.checkPass" auto-complete="off"></el-input></el-form-item>
		<el-form-item>
			<el-button type="primary" @click="submitForm('ruleForm')">Register</el-button>
			<el-button @click="resetForm('ruleForm')">Reset</el-button>
		</el-form-item>
	</el-form>
</template>
 
<script>
export default {
	data() {
		var validatePass = (rule, value, callback) => {
			if (value === '') {
				callback(new Error('Please enter your password'));
			} else {
				if (this.ruleForm.checkPass !== '') {
					this.$refs.ruleForm.validateField('checkPass');
				}
				callback();
			}
		};
 
		var validatePass2 = (rule, value, callback) => {
			if (value === '') {
				callback(new Error('Please enter your password again'));
			} else if (value !== this.ruleForm.pass) {
				callback(new Error('The passwords entered twice do not match!'));
			} else {
				callback();
			}
		};
 
		return {
			activeName: 'second',
			ruleForm: {
				name: '',
				pass: '',
				checkPass: ''
			},
			rules:
				name: [{ required: true, message: 'Please enter your name', trigger: 'blur' }, { min: 2, max: 5, message: 'Length must be between 2 and 5 characters', trigger: 'blur' }],
				pass: [{ required: true, validator: validatePass, trigger: 'blur' }],
				checkPass: [{ required: true, validator: validatePass2, trigger: 'blur' }]
			}
		};
	},
 
	methods: {
		submitForm(formName) {
			this.$refs[formName].validate(valid => {
				if (valid) {
					this.$message({
						type: 'success',
						message: 'Registration successful'
					});
					// this.activeName: 'first',
				} else {
					console.log('error submit!!');
					return false;
				}
			});
		},
 
		resetForm(formName) {
			this.$refs[formName].resetFields();
		}
	}
};
</script>

<template>
  <el-row type="flex" justify="center">
   <el-form ref="formData" :model="formData" :rules="rules" label-width="80px" @keyup.enter.native="login()">
    <el-form-item prop="userName" label="Username"><el-input v-model="formData.userName" placeholder="Please enter your username" prefix-icon="icon-login_user" clearable></el-input></el-form-item>
    <el-form-item prop="password" label="Password"><el-input v-model="formData.password" placeholder="Please enter your password" type="password" prefix-icon="icon-login_pwd" clearable></el-input></el-form-item>
    </el-form-item>
    <el-form-item><el-button type="primary" class="btn" @click="login('formData')" icon="el-icon-upload">Login</el-button>
     <el-button @click="resetForm('formData')">Reset</el-button></el-form-item></el-form-item>
     <router-link to="register">No password? Register</router-link>
   </el-form>
  </el-row>
</template>
<script>
export default {
 data() {
  return {
   formData: {
    userName: '',
    password: ''
   },
   rules:
    userName: [{ required: true, message: 'Username cannot be empty', trigger: 'blur' }],
    password: [{ required: true, message: 'The password cannot be empty', trigger: 'blur' }]
   }
  };
 },
 methods: {
  login(formName) {
 
    this.$refs[formName].validate(valid => {
				if (valid) {
					this.$message({
						type: 'success',
						message: 'Login successful'
          });
           this.$router.push({name:'home'});
				} else {
					console.log('error submit!!');
					return false;
				}
			});
  },
   resetForm(formName) {
			this.$refs[formName].resetFields();
		}
 }
};
</script>

<template>
  <el-row type="flex" justify="center">
   <el-form ref="formData" :model="formData" :rules="rules" label-width="80px" @keyup.enter.native="register()">
    <el-form-item prop="userName" label="Username"><el-input v-model="formData.userName" placeholder="Please enter your username" prefix-icon="icon-login_user" clearable></el-input></el-form-item>
    <el-form-item prop="password" label="Password"><el-input v-model="formData.password" placeholder="Please enter your password" type="password" prefix-icon="icon-login_pwd" clearable></el-input></el-form-item>
    <el-form-item prop="cheackPassword" label="Confirm Password"><el-input v-model="formData.cheackPassword" placeholder="Enter password again" type="password" prefix-icon="icon-login_pwd" clearable></el-input></el-form-item>
    </el-form-item>
    <el-form-item>
      <el-button type="primary" @click="register('formData')" icon="el-icon-upload">Register</el-button>
      <el-button @click="resetForm('formData')">Reset</el-button></el-form-item>
     <router-link to="login">Already have a password? Login</router-link>
 
   </el-form>
  </el-row>
</template>
<script>
export default {
 data() {
   var validatePass = (rule, value, callback) => {
			if (value === '') {
				callback(new Error('Please enter your password again'));
			} else if (value !== this.formData.password) {
				callback(new Error('The passwords entered twice do not match!'));
			} else {
				callback();
			}
		};
 
  return {
   formData: {
    userName: '',
    password: '',
    cheackPassword:''
   },
   rules:
    userName: [{ required: true, message: 'Username cannot be empty', trigger: 'blur' }],
    password: [{ required: true, message: 'Password cannot be empty', trigger: 'blur' }],
    cheackPassword: [{ required: true, validator: validatePass, trigger: 'blur' }]
 
   }
  };
 },
 methods: {
  register(formName) {
   this.$refs[formName].validate(valid => {
				if (valid) {
					this.$message({
						type: 'success',
						message: 'Registration successful'
          });
           this.$router.push({name:'login'});
				} else {
					console.log('error submit!!');
					return false;
				}
			});
  },
  resetForm(formName) {
			this.$refs[formName].resetFields();
		}
 
 }
};
</script>