9

Validate Javascript form by code in a separate file - codesd.com

 2 years ago
source link: https://www.codesd.com/item/validate-javascript-form-by-code-in-a-separate-file.html
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.

Validate Javascript form by code in a separate file

advertisements
<script type="text/javascript" src="js/js01.js"></script>
<!-- ... -->
<form id="frmReg" method="post" onsubmit="valRegs()" action="memb_area/register.php">

Why the function valRegs() (code is placed inside js01.js file) is not executed, except I drag the code inside html file ?
How can I be sure that valRegs() is always executed before and not after code inside register.php file ?


By making sure that the script with your validation is below the form in your html.

This is because you are trying to bind to a non-existent element when the script runs.

Alternatively you should wrap your script inside a jQuery $(document).ready() or by creating an onload function.

Related Articles

How to hide Ruby generated JavaScript code in a separate file?

We currently have a tool on our website that is created by JavaScript. The JavaScript is generated by Ruby via .js.erb and .html.erb files. The problem is that it's proprietary code and we'd like to at least be able to move it to a separate file so i

Save my output code in a separate file?

identify the individual words in a sentence and store them in a list create a list of positions for words in that list save these lists as a single file or as separate files. How would i save my output to a separate file? This is my code file=open("f

reactivates the router code in a separate file

I am new to reactjs and working to learn redux with react router. I want to have routes as separate file. However somehow its not working because I am not able to pass the dependencies. Following is code details. Working index.js having routes as wel

JavaScript form validation code loop

The following code loops when the page loads and I can't figure out why it is doing so. Is the issue with the onfocus? alert("JS is working"); function validateFirstName() { alert("validateFirstName was called"); var x = document.forms

Compile JavaScripts with Gulp and resolve dependencies (separate files)

I want to compile JavaScript files with Gulp. I have a src directory where all scripts are present with .js extension. I want all scripts to be compiled separately and placed into a destination directory (dist) with the same filename as the original.

Keep the code in a separate file

topic.php $id = isset($_GET['id']) ? intval($_GET['id']) : 0; $query = mysql_query("SELECT * FROM topics WHERE id = $id"); $row = mysql_fetch_assoc($query); $title = htmlspecialchars($row['title']); $text = bbcode($row['text']); view/topic.php &

Is it possible to put the Template7 code in a separate file rather than in html

I am using a framework called Framework7. In my index.html, I have some Template7 code, like this format <script type="text/template7" id="commentsTemplate"> {{#each this}} <div> test this template 7 code </div> </

PHP checks the empty value from the separate file

I have a registration page and I am going to check the values of each field in both javascript and PHP. The problem is I have the registration code behind in a separate file. I put it in a seperate file because I am querying a database and much more

How to run PHP from a separate file

I have a form thats action is another page. <form class="indexSearch" action="search.php" method="post"> to keep my code neat I'm keeping all my PHP code in a separate file that I am including in the head of every page.

How do I call a code-behind method after an external JavaScript validates a form?

I want to send an email to a user after they've filled out their details on a form. I want to validate the form (and if the form is valid) then send the email. My validation for the form is in a separate JavaScript file and the code that I use to sen

Validate the form with PHP and JavaScript?

Is it possible to validate a form with PHP and JavaScript? I'm currently able to do both using my existing form, but only on an individual basis. My overall goal is this: Validate form using JavaScript client side and present any errors to the user i

JavaScript does not validate the form

For some reason my JavaScript won't validate my forms and I cannot work out why. I've followed examples from many sites like Tizag & W3C, but to no avail. HTML form: <form class='login' name='login' onsubmit='return loginValidation();' method='post

Validate a form in Javascript does not work

I'm trying to validate a form using JavaScript, but the code doesn't seem to execute. The Form is being processed using php which is working just fine. But, the validation is not working. Can someone please help me with this. <script> function valid

Javascript function to validate the form AND display the loading screen of the css

I'm a javascript newbie and I'm attempting to combine two pieces of code which are working individually but not together: Validate my form to check that the length, width and height are non-zero If form is valid, submit form and display a css splash

About Joyk


Aggregate valuable and interesting links.
Joyk means Joy of geeK