$(window).scroll(function() { if ($(this).scrollTop() > 0) { $( .header-menu-layout ).css( background-color , white ); $( .header-menu-layout ).animate({ backgroundColor: white }, 300); } if ($(this).scrollTop() =...
I want to get the scrollTop value when the mouse is pressed, but when I press it, I can t find that element. dragStartScrollPosition = self.$cont[0].scrollTop; I think the element is not fetched, but the newly created object has been checked and the ...
function scrollTo(dom, dis, dir = up ) { if(dir == up ) { var scroll = function() { var timer = setTimeout( function() { if(dom.scrollTop() > dis) { dom.scrollTop(dom.scrollTop() -50);...
class Demo extends Component { handleSubmit = () => { chart } componentDidMount() { var chart = new G2.Chart({ container: dashboardChange , forceFit: true, }); ...
is that in some places, you can use either this tag or another tag. How can you choose better? ...
current situation: We are abbreviated as A, and the other party is referred to as B . Mini Program a was developed under the official account of A, and then Wechat card coupons were created in the official account of B . How can we call the wx.addCard i...
as a client,windows, you can create several vpn to connect to different remote vpn server? at the same time. ...
I have the following extremely simple code: var img = new Image() img.onload = () => { var canvas = document.createElement( canvas ) var ctx = canvas.getContext( 2d ) ctx.drawImage(img, 0, 0) } img.src = xxx the above code is fi...