转换jquery＆＃34;如果＆＃34;陈述到＆＃34;开关＆＃34;

Question

我正在尝试将if语句转换为switch;到目前为止没有运气：

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<button id="myBtn" onclick="app.click()">Click me</button>

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到目前为止，我尝试了以下内容：

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if (myapp_config.thisDevice == 'desktop') {

  var primaryNavHeight = $('#primary-nav').height() + app_get_header_height,
    pageWrapperHeight = $('#page-wrapper').height();

  if (primaryNavHeight > pageWrapperHeight) {
    $('#page-wrapper').css("min-height", primaryNavHeight + "px");
  }
  if (primaryNavHeight < pageWrapperHeight) {
    $('#page-wrapper').css("min-height", $(window).height() + "px");
  }

}

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有人会善意地指出我做错了什么吗？

Answer 1

您没有计算primaryNavHeight和pageWrapperHeight。这可能是问题所在。

var primaryNavHeight = $('#primary-nav').height() + app_get_header_height,
    pageWrapperHeight = $('#page-wrapper').height();


switch (myapp_config.thisDevice == 'desktop') {
  case (primaryNavHeight > pageWrapperHeight):
    // do stuff
    $('#page-wrapper').css("min-height", primaryNavHeight + "px");
    break;
  case (primaryNavHeight < pageWrapperHeight):
    // do stuff
    $('#page-wrapper').css("min-height", primaryNavHeight + "px");
    break;
}