I emit an error message and replace the return value with 0, instead (remember: every inline code block returns an object).

我发出错误信息，将返回值替换为0(请记住：每个内联代码块都返回一个对象)。

youdao

To do so, add additional code to the inline script block you created earlier (see Listing 4). Listing 9 shows the inline script block.

为此，需要在前面创建的内联脚本块(见清单4)中添加代码。

youdao

To do so, add additional code to the inline script block you created earlier (see Listing 4). Listing 9 shows the inline script block.

为此，需要在前面创建的内联脚本块(见清单4)中添加代码。

youdao