上QQ阅读APP看书，第一时间看更新
Building the project
Our sample project can now be built by hitting Ctrl+Shift+B. Note that, in the base directory of our project, we now have a hello.js and a hello.js.map file as the result of the compilation step.
Our sample project can now be built by hitting Ctrl+Shift+B. Note that, in the base directory of our project, we now have a hello.js and a hello.js.map file as the result of the compilation step.