Microsoft has launched a beta of TypeScript 5.6, an replace to the strongly typed JavaScript variant that disallows nullish and truthy checks on syntax that by no means varies on nullishness or truthiness.
The TypeScript 5.6 beta, which follows final month’s manufacturing launch of TypeScript 5.5, was introduced July 26. TypeScript 5.6 could be accessed by NuGet or by NPM by working the npm set up -D typescript@beta command.
For disallowed nullish and truthy checks, the compiler now errors when it will possibly syntactically decide {that a} truthy or nullish verify will at all times consider in a selected approach. Microsoft stated “many, many bugs” might be caught this manner. Some expressions nonetheless are allowed even when truthy or nullish. Particularly, true, false, 0, and 1 are all nonetheless allowed regardless of at all times being truthy or falsy.
