there is a User class whose method calculate () needs to use a member value in an instance of the external data class as the input source. In the User constructor, you need to pass in different data instances as parameters, and create different User cla...
Business background when submitting data on the page often involves preventing repeated clicks is usually handled in the corresponding click event method but it has to be written in every method, which is really troublesome wishful thinking ...
I feel less and less able to write code. At present, there is a problem, that is, when does need to be judged, and when is the judgment redundant and unnecessary? for example, 1, do you judge the addition, deletion, modification and query of the dat...
the entire Internet is made up of countless subnets, and when you enter an address from a browser and go back to access resources on another computer, the first step is DNS parsing to get the ip address of another computer. at this point, the first th...
< H2 > the web page is here < H2 > https: zh.airbnb.com host ho. select is this $( -sharpstacked-ui-header-wmpw-capacity ).val( 3 ).change() ,select selectselect document.querySelector( -sharpstacked-ui-header-wmpw-capacity ).selec...
Wechat: 467015242 changeAvatar:function (){ var that=this; wx.chooseImage({ count: 1, 9 sizeType: [ original , compressed ], sourceType: [ album , camera ], ...