```
--------------------------------
### WeChat Ready Callback
Source: https://github.com/tencent/weui/blob/master/src/example/half-screen-dialog/half-screen-dialog.html
Provides a utility function to execute a callback once the WeChat JSAPI is ready. Use this to ensure WeChat-specific functionalities are available before execution.
```javascript
function wxReady(callback) {
if ( typeof WeixinJSBridge
```
--------------------------------
### Show Half Screen Dialog 2 with Button Wrap Logic
Source: https://github.com/tencent/weui/blob/master/src/example/half-screen-dialog/half-screen-dialog.html
Opens the second dialog and conditionally applies a class based on button wrap height. Use this to adjust layout for dialogs with prominent action buttons.
```javascript
$('#showDialog2').on('click', function(){
$dialogWrap2.fadeIn(200);
$dialog2.addClass('weui-half-screen-dialog_show');
// wrapPage.style.visibility = 'hidden';
setTimeout(function(){
if(wrapBtn.offsetHeight > 48){
wrapPage.classList.add('weui-half-screen-dialog_btn-wrap');
}
// wrapPage.style.visibility = 'visible';
},100);
setTimeout(function(){
$dialogWrap2.attr('aria-hidden','false');
$dialogWrap2.attr('aria-modal','true');
$dialogWrap2.attr('tabindex','0');
$dialogWrap2.trigger('focus');
},200)
});
```