JavaScript - static variables?

Question

I have an input type="text", its default value is "Mike". When the user clicks on it, the value is supposed to be set to '' (empty), and when it goes out of focus, its supposed to go back to "Mike" (unless the user changed the value to another name). What I've done is:

<input type="text" id="TxtFname" style="width:50%" runat="server"
    onfocus="firstText = this.text;if(this.value!=''){this.value='';}"
    onblur="if(this.value==''){this.value=firstText;}" />

and in the top of the page, in the head content place holder:

<script type="text/javascript" lang="jv">
    var firstText;
</script>

for some reason it keeps "forgetting" whats firstText's value is, so it sets the textbox value to "undefined". Is there a way to create a static variable, so firstText's value doesn't reset every time?

You really should be using the placeholder attribute for such things… — Bergi
– Bergi, Commented Mar 23, 2013 at 18:56

David G · Accepted Answer · 2013-03-23 18:04:33Z

2

You should be setting firstText to the input's value attribute.

firstText = this.value;

Otherwise, this.text is not a defined property on the input element so its value gets defaulted to undefined.

answered Mar 23, 2013 at 18:04

David G

97.6k41 gold badges173 silver badges258 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Htusa Adssad Over a year ago

Thanks! I thought text and value were the same thing. this solved my problem.

Collectives™ on Stack Overflow

JavaScript - static variables?

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related