typescript精华

• noImplicitAny
  如下的代码在严格模式下将会报错，需显示指定someArg的类型

  1 2 3

  function log(someArg) { // Error : someArg has an implicit `any` type sendDataToServer(someArg); }

• strictNullChecks

下段代码在strict模式下，编译器将提示elem可能为null

1
2

const elem = document.getElementById('test');
elem.innerHTML = 'Hello World';