WordPress 媒体上传器 javascript 不起作用

Question

Wordpress media uploader js doesn't work.

Really I very very tried. Other code page right why don't work I can't understanding. How can I work this code?

jQuery(document).ready( function($){


    var mediaUploader;

    $( '#upload-button' ).on('click', function(e) {
        e.preventDefault();
        if ( mediaUploader ){
            mediaUploader.open();
            return;
        }

        mediaUploader = wp.media.frames.file_frame = wp.media({
            title: 'Choose a Profile Picture',
            button: {
                text: 'Choose Picture'
            },
            multiple: false
        });

    });

});

Answer 1

*Update

Try this:

(function ($) {

 var mediaUploader;

    $( '#upload-button' ).on('click', function(e) {
        e.preventDefault();
        if ( mediaUploader ){
            mediaUploader.open();
            return;
        }

        mediaUploader = wp.media.frames.file_frame = wp.media({
            title: 'Choose a Profile Picture',
            button: {
                text: 'Choose Picture'
            },
            multiple: false
        });
          mediaUploader.open();
    });

})(jQuery);