When creating and programming JavaScript, don+t miss out on this program. JS/CC is a LALR translation generator for JavaScript and ECMAScript, that has the peculiarity of having been written in JavaScript.The JS/CC translator is based on the behaviour of lex and yacc languges, and joined on one side by a lexical analysis generator, and by a LALR translation generator. One tests to see if the tokens used in the language are valid, and the other checks if the structure is correct.JS/CC can compile and run a complete translation from the definition of a determined grammar. It is also ideal for teaching.