TypeScript 2.3 and later support type-checking and reporting errors in .js files with ... that have multiple initializers as described above. The module support in Javascript is much more ...

Excess property checking is intended to find typos when a type is not expecting a specific property. In TypeScript 3.5, the type checker verifies that all provided properties belong to some union ...

Type-fans rejoice! Plans (or a proposal, at least) are afoot to pop some type-checking into the infamously dynamically typed JavaScript. The proposal planned from Microsoft and others, including devs ...

JavaScript would allow it. The introduction of a type system doesn't seem like a big deal, but it has a major impact on how to manage large applications. With TypeScript, when a variable is assigned a ...

Instead, it extends it, with the result that any JavaScript program is automatically a TypeScript program, without requiring any changes at all (albeit a program that has no static type checking ...

TypeScript 2.3 and later support type-checking and reporting errors in .js files with ... Constructor functions work basically the same as classes Before ES2015, Javascript used constructor functions ...