background: 1. the canvas has a red rectangle with a width of 400 and a height of 100, and the right side exceeds the canvas 100. Click to download, call the toDataURL method, and get the red rectangle of the truncated 300x100. wants to download...
question: has not been using zrender for long. As shown in the figure, text and rect are the same group, doing everything possible to center the word and wrap lines beyond the width . It s not good to set textWidth in new zrender.Text s style, n...
the only thing I can animate is percent, but this is not what I want. I want an origin to move along the Bezier curve, how to achieve it? ...
for example <form> <input type="email"> < form> when there is a problem with the format of the mailbox entered in the chrome browser, it will automatically give a hint that there is a problem with the format. I would li...
The project has a separate login page. After logging in successfully, enter the routing page. how to achieve this, ask for advice ...
I have studied python (a thin getting started manual) and have been reading javascript recently. confused ~ about the classes, objects, and prototypes of the two, so I understood it this way, and I don t know whether it is correct or not. I hope you ...
ask your seniors for help. I have configured the java environment (jdk11). After clicking startup.bat, I can also access localhost8080, but there is a problem starting tomcat in the Windows service. The following error was reported: Baidu, Google a...
problem description pages entered directly through the url address need to cancel the return button. How to determine whether the current page is the first page when entering? tried methods 1. Window.history uses window.history.length to determin...