JSDisconnectedException is trapped during module disposal in case Blazor's SignalR circuit is lost. If the preceding code is used in a Blazor WebAssembly app, there's no SignalR connection to lose, so you can remove the try-catch block and leave the line that disposes the module (a...
Object.is()and===weird cases Object.is()determines if two values have the same value or not. It works similar to the===operator but there are a few weird cases: Object.is(NaN,NaN);// -> trueNaN===NaN;// -> falseObject.is(-0,0);// -> false-0===0;// -> trueObject.is...
尝试几行 JavaScript 代码的最简单方法是在您的网络浏览器中打开 Web 开发者工具(使用 F12、Ctrl-Shift-I 或 Command-Option-I),然后选择控制台选项卡。然后,您可以在提示符处输入代码并在输入时查看结果。浏览器开发者工具通常显示为浏览器窗口底部或右侧的窗格,但通常可以将它们分离为单独的窗口(如图 1-1 所示...
Select theelement. In theStylestab, look at the applied theme. If the current theme is dark, thedark-themestyles are applied. Make sure the dark theme is selected. Select theConsoletab to see theconsole.logmessage,current class name: dark-theme. Using the...
// bad if (test) return false; // good if (test) return false; // good if (test) { return false; } // bad function foo() { return false; } // good function bar() { return false; }16.2 If you’re using multiline blocks with if and else, put else on the same line as ...
多行文本注意设置 line-height 代码语言:javascript 复制 .text-ellipsis-multiple{-webkit-line-clamp:2;// webkit 内核浏览器支持的行数display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden; text-overflow:ellipsis;// clip|ellipsis|string 截断|省略号|自定义字符串} ...
If a single number is provided, the offset will be applied in both top and bottom directions. To provide a unique, bottom and top offset just provide an object offset: { top: 10 } or offset: { top: 10, bottom: 5 }. Use a function when you need to dynamically calculate an offset....
Figure 1-9. The Safari Error Console displays the name of the JavaScript error, the filename (and location), and the line on which Safari encountered the error. Each tab or browser window has its own error console, so if you’ve already opened the console for one tab, you need to cho...
If a single number is provided, the offset will be applied in both top and bottom directions. To provide a unique, bottom and top offset just provide an object offset: { top: 10 } or offset: { top: 10, bottom: 5 }. Use a function when you need to dynamically calculate an offset....
x : y. It’s a terse, single-line if statement that chooses between two expressions, depending on the result of a third one. Operator Precedence If all operators had the same precedence, they would be processed in the order in which they are encountered. In fact, many operators do have...