How to show/hide input value on focus?

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隐瞒了意图╮
隐瞒了意图╮ 2021-02-06 12:44

I see this all over the web, but was wondering if anyone has the JavaScript code for the EASIEST way to show input value on blur, but hide in on focus.

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7条回答
  • 2021-02-06 12:57

    For all browsers:

    <input onfocus="if(this.value == 'Your value') { this.value = '';}" onblur="if(this.value == '') { this.value = 'Your value';}" value="Your value" type="text" name="inputname" />
    

    For newest version of browsers:

    <input type="text" name="inputname" placeholder="Your value" />
    
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  • 2021-02-06 12:58

    I prefer jQuery way:

    $(function(){
        /* Hide form input values on focus*/ 
        $('input:text').each(function(){
            var txtval = $(this).val();
            $(this).focus(function(){
                if($(this).val() == txtval){
                    $(this).val('')
                }
            });
            $(this).blur(function(){
                if($(this).val() == ""){
                    $(this).val(txtval);
                }
            });
        });
    });
    

    It is modified Hide Form Input Values On Focus With jQuery by Zack Perdue.

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  • 2021-02-06 12:59

    This is what I use on my blog. Just go there and check out the source code behind.

    function displaySearchText(text){
        var searchField = document.getElementById('searchField');
        if(searchField != null)
            searchField.value = text;
    }
    

    Your input field should look something like this:

    <input id='searchField' name='q' onblur='displaySearchText("Search...");' onfocus='displaySearchText("");' onkeydown='performSearch(e);' type='text' value='Search...'/>
    
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  • 2021-02-06 13:01

    This always worked for me:

    <input 
        type="text" 
        value="Name:"
        name="visitors_name" 
        onblur="if(value=='') value = 'Name:'" 
        onfocus="if(value=='Name:') value = ''"
     />
    
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  • 2021-02-06 13:17

    If you don’t care about valid HTML, you use the placeholder attribute. It will work out of the box on a Safari, and you can add some unobtrusive JS to mimic this behavior in other browsers.

    More reading:

    • http://www.beyondstandards.com/archives/input-placeholders/ (JS implementation)
    • http://lab.dotjay.co.uk/experiments/forms/input-placeholder-text/

    And google. ;-)

    The solution is similar to the one Josh Stodola posted, but it’s more flexible and universal.

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  • 2021-02-06 13:19

    Since this still comes up on google, I'd like to point out that with HTML 5 you can use the placeholder attribute with an input to achieve this in one piece of html.

    <input type="text" id="myinput" placeholder="search..." />
    

    Placeholder is now standard across modern browsers, so this really would be the preferred method.

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