Can't dynamically modify the placeholder text

[RustyTheBoyRobot]

placeholder version: 2.3.0
jQuery version: 1.10.2
Browsers: IE 7-9 (couldn't test 6)

Reproduction Steps:

1. Open the demo page in IE 10: https://mathiasbynens.github.io/jquery-placeholder/
2. In the Javascript Console, run this: $("[name=search]").attr("placeholder", "Changed!");. Notice that the first text box has the placeholder text of "Changed"
3. Open the demo page in IE 9 or older
4. In the Javascript Console, run this: $("[name=search]").attr("placeholder", "Changed!");. Notice that the first text box's placeholder text is unchanged.

This also means that the placeholder text will not get cleared out on focus, since the value does not match the placeholder attribute value.

If this functionality is outside of the scope of this plugin, so be it. I just didn't see anything in the documentation that says that you can't do this.

[RustyTheBoyRobot]

This seems to be working for me as a workaround:

    function changePlaceholderText(element, text)
    {
        var $element = $(element);
        var currentVal = $element.val();

        var needsInputFix = ($element.is("input") && !$.fn.placeholder.input);
        var needsTextAreaFix = ($element.is("textarea") && !$.fn.placeholder.textarea);

        $element.attr("placeholder", text);
        if (currentVal === "" && (needsInputFix || needsTextAreaFix))
        {
            $element[0].value = text;
        }
    }

It simply modifies the DOM element's value to match the new placeholder text so that the onfocus code will strip out the text correctly.

[cailingling]

I also encountered this problem, how to solve

[myadzel]

You can change placeholder value this way:

var currentInputValue = $element.val();
$element.attr("placeholder", "new placeholder value").val(currentInputValue);