How to validate HTML form in two-step?

Last week I wrote about building HTML form, but even the most important thing is to know how to validate data before you send it to the server. Probably you won’t storage data from your clients with have no value. So how you can use the HTML Form attribute and JavaScript to validate data inserted into HTML FORM on the website?

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Krzysztof NyrekHow to validate HTML form in two-step?
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How to manage data collected on a webpage via HTML Form tag?

The most popular HTML tag used on a webpage is an HTML form. It is used to get some data from visitors and display some results on the web page depends on how visitors fill data fields in this HTML form. Are you a master in HTML form building, or maybe from time to time, you need to search for information about dealing with this HTML tag? In this post, I stored some information about HTML form.

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Krzysztof NyrekHow to manage data collected on a webpage via HTML Form tag?
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How to use data from HTML form in JavaScript

Have you ever have some problems with data transferring between HTML form and JavaScript? I had, and I had learn something new. You probably know, that one of the most popular interaction between visitors and webpage based on HTML form. The Customer put some data to HTML form and then we use this data in JavaScript or we send in to server. What exactly I needed to do in my task, and what new things about that I learned, you can find bellow.

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Krzysztof NyrekHow to use data from HTML form in JavaScript
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How to be more productive?

How to be more productive and have more energy to act during the day? This question keeps many people awake at night. You can find a dozen tips on the Internet. I’ve tried almost all of them, but only one method has worked. I discovered it at the end of 2020 and it has been working great so far. What is going on?

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Krzysztof NyrekHow to be more productive?
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How to made animation on the website?

A long, long, long time ago in there was no animation on the website. Just text, sometimes images, and hyperlinks. Then web developers used to animate elements on websites via JavaScript. That worked and still works, but today we can use CSS properties to make awesome animation on a webpage. In this post, I show you how to do that.

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Krzysztof NyrekHow to made animation on the website?
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