Validating a checkbox using javascript

31-Jan-2020 02:52

validating a checkbox using javascript-39

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By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service.Your use of Stack Overflow’s Products and Services, including the Stack Overflow Network, is subject to these policies and terms. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).If not, an alert is displayed and focus is moved to the checkbox.Not the prettiest solution, but functional in all browsers with Java Script enabled.From that you should be able to figure out what the problem is with your IF condition.While HTML5 form validation is typically about missing or invalid text inputs, there are other form element types that also require attention. Suppose you have a form on your website that at the bottom asks people to "accept the Terms and Conditions" or something similar.The following function checks whether the texbox with id name1 is empty, if empty it displays a message and highlights that textbox with red color.

validating a checkbox using javascript-27

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If you put an alert() inside and just below your IF block I think you'll find the alert() inside the IF block will never be executed, hence your form is always submitted whether you check any boxes or not.

An HTML combobox shows a dropdown list of items from which one item is selected.

By default the caption for that list is the first item.

Would you like to answer one of these unanswered questions instead?

validating a checkbox using javascript-75

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Hello, Apologies if this is a duplicate thread, though I did search existing topics but couldn't find a similar problem to mine.The tutorial describes Javascript validation of textboxes, comboboxes, radio buttons and checkboxes.

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