问题
When trying to use the jQuery mask() function, I get the following error in the console:
TypeError: $(...).mask is not a function
This is a sample of my code where this is happening:
<html>
<body>
<input type='text' id='phone' />
</body>
<script src="http://code.jquery.com/jquery-1.11.2.min.js"></script>
<script>
//alert($);
$(document).ready(function(){
$("#phone").mask("(99) 9999-9999");
});
</script>
</html>
How do I fix this?
回答1:
Jquery mask is a plugin. You can directly add this line in your HTML if you want to use a CDN version:
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.mask/1.14.10/jquery.mask.js"></script>
Another way is to use a package manager like npm or bower. To accomplish that, follow the instructions in the README.md file of the project.
回答2:
Change this line from
$(document).ready(function(){
to
$(document).ready(function($){
回答3:
jQuery itself does not provide functionality for masking an input. You can use one of the plugins avaiable for it.
来源：https://stackoverflow.com/questions/28512909/why-does-jquery-mask-say-its-not-a-function