//// [collisionThisExpressionAndLocalVarInFunction.ts] var console: { log(val: any); } function x() { var _this = 5; x => { console.log(this.x); }; } //// [collisionThisExpressionAndLocalVarInFunction.js] var console; function x() { var _this = this; var _this = 5; (function (x) { console.log(_this.x); }); }