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Compatible with placeholder and placeholder

Source: Internet
Author: User
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Compatible with placeholder and placeholder

As we all know, IE9 is not compatible with the placeholder attribute, so we have customized a jQuery plug-in, placeHolder. js. The code for placeHolder. js is as follows:

/*** This control is compatible with IE9 or lower, and is specially designed for the * Author: quranjie * Date: */$ (function () that does not support the placeholder attribute below IE9 () {// if placeholder is not supported, use jQuery to complete if (! Issuppplacplaceholder () {// traverses all input objects, except for the password box $ ('input '). not ("input [type = 'Password']"). each (function () {var self = $ (this); var val = self. attr ("placeholder"); input (self, val) ;});/* Special Handling of the password box * 1. create a text box * 2. switch between getting focus and losing focus */$ ('input [type = "password"] '). each (function () {var pwdField = $ (this); var pwdVal = pwdField. attr ('placeholder'); var pwdId = pwdField. attr ('id'); // rename the input id to the original id followed by 1pwdField. after ('<input id = "' + pwdId + '1" type = "text" value = '+ pwdVal + 'autocomplete = "off"/> '); var pwdPlaceholder =$ ('#' + pwdId + '1'); pwdPlaceholder. show (); pwdField. hide (); pwdPlaceholder. focus (function () {pwdPlaceholder. hide (); pwdField. show (); pwdField. focus () ;}); pwdField. blur (function () {if (pwdField. val () = '') {pwdPlaceholder. show (); pwdField. hide () ;}}) ;}}); // determines whether the browser supports the placeholder attribute function issuppplacplaceholder () {var input = document. createElement ('input'); return 'placeholder' in input;} // jQuery replaces the processing function input (obj, val) {var $ input = obj; var val = val; $ input. attr ({value: val}); $ input. focus (function () {if ($ input. val () = val) {$ (this ). attr ({value :""});}}). blur (function () {if ($ input. val () = "") {$ (this ). attr ({value: val });}});}

Call method:

<Html> This code is compatible with IE9 and earlier versions. jQuery selects a stable version of 1.7.2. The code implementation takes into account multiple password input boxes on a page.






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Is there any plug-in that allows ie6 ie7 ie8 to support the placeholder attribute in input?

Placeholder is HTML5.
Cannot be used in IE6-8. You can use JQ to set this parameter.
Input a value. value = "" When JQ determines the focal point "";
If the input is empty when the focus is removed, add "Please input"

An example is as follows:
$ (Document ). ready (function () {$ ("input "). focusin (function () {if ($ (this ). val () = "enter") {$ (this ). val ("") ;}}); $ ("input "). focusout (function () {if ($ (this ). val () = "") {$ (this ). val ("enter ");}});});

What is placeholder?


Found for you
A variable represents the new window.
Let's take an example.
<Html>
<Script langruage = "javascript">
Var placeHolder = folder holder open('holder.html ', 'placeholder', 'width = 200, height = 200 ');
 
</Script>
</Html>
Save your program as a. html file. When you click open, a new window is displayed. The new window can be controlled by placeHolder in the program. Next, let's look at this:
<Html>
<Script langruage = "javascript">
Var placeHolder = folder holder open('holder.html ', 'placeholder', 'width = 200, height = 200 ');
PlaceHolder. close ();
</Script>
</Html>
Added a sentence: placeHolder. close (); run a new program. The pop-up window will be closed immediately after it is opened. Do you know this?

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Related Keywords:
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