You are developing a customer web form that includes the following HTML.
<input id=”txtValue” />
A customer must enter a value in the text box priorto submitting the form.
You need to add validation to the text box control.
Which HTML should you use?
A.
<input id=”txtValue” type=”text” required=”required”/>
B.
<input id=”txtValue” type=”text” pattern=”[A-Za-z]{3}” />
C.
<input id=”txtValue” type=”required” />
D.
<input id=”txtValue” type=”required” autocomplete=”on” />
Why not B?
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Yeah, the question says “must enter” but nothing about the format. It is A.
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la respuesta podria ser la A porq tiene el atributo required y dice q debe entrar
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But A is not a valid code. required = “required” is not valid code when i type it into visual studio. The only valid code is B
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This question is not about pattern. The Answer B allows user to input 3 characters alphabets.
The question is not about the pattern, its about the user must input value.
And as far as ‘required=”required”‘ goes, this is html 4 style. So if you are using HTML 5 in visual Studio, because in in HTML 5, it is used as
However ‘required’ only as well as required=”required” both works. The Visual Studio shows red underline just because you are not using HTML 5, if you used as the answer A.
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But C is also correct Because the default input will be text
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go to http://www.w3schools.com. They also discuss the required attribute. I agree this is HTML 4 not HTML 5
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