From InfoWorld: With TypeScript 1.4, Microsoft offers accommodations for ECMAScript and type system improvements to developers.
Developed by C# and Pascal creator Anders Hejlsberg, TypeScript is an open source technology that compiles to JavaScript. Recently unveiled TypeScript 1.4 accommodates ECMAscript 6, an upgrade to the official specification underlying JavaScript that's still in development.
“In addition to the type system improvements, one of the main goals for the upcoming TypeScript 2.0 release is to fully support the ECMAScript 6 standard. With TypeScript 1.4, we take another step toward this goal,” said Microsoft’s Jonathan Turner, program manager for the TypeScript team, in a blog post. “In this release, we’ve added a new ES6 output mode, support for let and const, and support for ES6 template strings.”
ECMAScript 6, Turner said, has further improved on string interpolation in JavaScript via template strings. “These special strings can freely mix in expressions, allowing a lighter syntax when pieces of a string depend on associated value.” TypeScript 1.4 can compile ES6 template strings down to ES3/ES5.
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