With vue-validator being prepared for Vuejs 2, what is the most effective method for implementing frontend validation?
UPDATE I've come across a fantastic plugin called Vee Validate
With vue-validator being prepared for Vuejs 2, what is the most effective method for implementing frontend validation?
UPDATE I've come across a fantastic plugin called Vee Validate
One effective approach I recommend for incorporating front end validation with VueJS is through the utilization of vuelidate.
This tool is not only user-friendly but also robust in functionality. It provides validation based on the model, which means that the data defined in the application is what undergoes validation independent of the templates. Furthermore, it includes various pre-built validators such as for email, minimum and maximum lengths, and required fields, among others.
Utilizing existing Javascript validation libraries like Parsley.js or Validate.js can streamline the validation process. Validate.js, for example, offers a format that can easily be stored in the global store when using Vuex:
var constraints = {
creditCardNumber: {
presence: true,
format: {
pattern: /^(34|37|4|5[1-5]).*$/,
message: function(value, attribute, validatorOptions, attributes, globalOptions) {
return validate.format("^%{num} is not a valid credit card number", {
num: value
});
}
},
length: function(value, attributes, attributeName, options, constraints) {
if (value) {
// Amex
if ((/^(34|37).*$/).test(value)) return {is: 15};
// Visa, Mastercard
if ((/^(4|5[1-5]).*$/).test(value)) return {is: 16};
}
// Unknown card, don't validate length
return false;
}
},
creditCardZip: function(value, attributes, attributeName, options, constraints) {
if (!(/^(34|37).*$/).test(attributes.creditCardNumber)) return null;
return {
presence: {message: "is required when using AMEX"},
length: {is: 5}
};
}
};
Implementing this can be done as follows:
validate({creditCardNumber: "4"}, constraints);
// => {"creditCardNumber": ["Credit card number is the wrong length (should be 16 characters)"]}
validate({creditCardNumber: "9999999999999999"}, constraints);
// => {"creditCardNumber": ["9999999999999999 is not a valid credit card number"]}
validate({creditCardNumber: "4242424242424242"}, constraints);
// => undefined
validate({creditCardNumber: "340000000000000"}, constraints);
// => {"creditCardZip": ["Credit card zip is required when using AMEX"]}
To integrate these validation functions into your component, consider using @blur=validate(...)
At this time, the selection is limited. Explore vue-awesome for a curated list of the most useful libraries. Currently, there are only 2 options available.
If you happen to be utilizing semantic-ui or considering it, their form validation plugin is truly remarkable.
Check out semantic-ui-form-validation here.
I personally have integrated it with Vuejs and the results have been fantastic.
After trying out various validators, I must say that I was impressed by the simplicity, flexibility, and thorough documentation of this one. It covers a wide range of scenarios for validating forms in Vue Js.
In the past, I relied on the Jquery validator plugin. However, the simple-vue-validator truly shines in its adaptability and its capability to validate forms that are both static and dynamically generated.
For those interested, you can find more information about this validator at https://github.com/semisleep/simple-vue-validator
I've been using it extensively for my SaaS project and it has proven to be extremely reliable so far.
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