placeholder is not working in IE9

Question

I am salesforce (SFDC) developer. In my visualforce page for input box I am using placeholder code.

    

        
                      

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Answer 1

As IE9 doesn't support the placeholder attribute, you can do it in Javascript/jQuery like so (quickly written, not tested):

if(navigator.appVersion.match(/MSIE [\d.]+/)){
    var placeholderText = 'Some Placeholder Text';
    $('#first_name').val(placeholderText);
    $('#first_name').blur(function(){
        $(this).val() == '' ? $(this).val(placeholderText) : false;
    });
    $('#first_name').focus(function(){
        $(this).val() == placeholderText ? $(this).val('') : false;
    });
}

Do the same for the blur event too, then that will mimic a placeholder attribute.

[Edit]

Okay, after rethinking this (due to the comment) this is really not the most elegant solution (however it does work), so I would disregard this answer totally.

Answer 2

A little simpler answer worked for me not being very trusting of Regex (my downfall)

function setPlaceHolderForIE9() {
    var pos = window.navigator.userAgent.indexOf("MSIE");

    if (pos > 0) {
        if (window.navigator.userAgent.substring(pos + 5, window.navigator.userAgent.indexOf(".", pos)) < 10) {
            //alert($("input[placeholder]").val($("input[placeholder]").attr("placeholder")));
            $("input[placeholder]").each(function () {
                $(this).val($(this).attr("placeholder"));
            });

            $("input[placeholder]").click(function () {
                if ($(this).val() === $(this).attr("placeholder")) {
                    $(this).val('');
                }
            });

            $('input[placeholder]').blur(function () {

                if ($.trim($(this).val()).length === 0) {
                    $(this).val($(this).attr("placeholder"));
                }
            });


        }
    }
}

Answer 3

if(navigator.appVersion.match(/MSIE [\d.]+/)){
    $(document).find("input[placeholder]").each(function(){
        if($.trim($(this).val()) == ""){
            $(this).val($(this).attr("placeholder")).addClass('placeholder');
        }
        $(this).on("focus",function(){
            $(this).hasClass('placeholder') ? $(this).val('').removeClass('placeholder') : false;
        }).on("blur",function(){
            $(this).val() == '' ? $(this).val($(this).attr("placeholder")).addClass('placeholder') :false;          
        });
    });     
}