//// [destructuringArrayBindingPatternAndAssignment2.ts] // V is an array assignment pattern, S is the type Any or an array-like type (section 3.3.2), and, for each assignment element E in V, // S is the type Any, or var [[a0], [[a1]]] = [] // Error var [[a2], [[a3]]] = undefined // Error // V is an array assignment pattern, S is the type Any or an array-like type (section 3.3.2), and, for each assignment element E in V, // S is a tuple- like type (section 3.3.3) with a property named N of a type that is assignable to the target given in E, // where N is the numeric index of E in the array assignment pattern, or var [b0, b1, b2]: [number, boolean, string] = [1, 2, "string"]; // Error interface J extends Array { 2: number; } function bar(): J { return <[number, number, number]>[1, 2, 3]; } var [b3 = "string", b4, b5] = bar(); // Error // V is an array assignment pattern, S is the type Any or an array-like type (section 3.3.2), and, for each assignment element E in V, // S is not a tuple- like type and the numeric index signature type of S is assignable to the target given in E. var temp = [1, 2, 3] var [c0, c1]: [number, number] = [...temp]; // Error var [c2, c3]: [string, string] = [...temp]; // Error interface F { [idx: number]: boolean } function foo(idx: number): F { return { 2: true } } var [c4, c5, c6] = foo(1); // Error //// [destructuringArrayBindingPatternAndAssignment2.js] // V is an array assignment pattern, S is the type Any or an array-like type (section 3.3.2), and, for each assignment element E in V, // S is the type Any, or var _a = [], a0 = _a[0][0], a1 = _a[1][0][0]; // Error var a2 = undefined[0][0], a3 = undefined[1][0][0]; // Error // V is an array assignment pattern, S is the type Any or an array-like type (section 3.3.2), and, for each assignment element E in V, // S is a tuple- like type (section 3.3.3) with a property named N of a type that is assignable to the target given in E, // where N is the numeric index of E in the array assignment pattern, or var _b = [1, 2, "string"], b0 = _b[0], b1 = _b[1], b2 = _b[2]; // Error function bar() { return [1, 2, 3]; } var _c = bar(), _d = _c[0], b3 = _d === void 0 ? "string" : _d, b4 = _c[1], b5 = _c[2]; // Error // V is an array assignment pattern, S is the type Any or an array-like type (section 3.3.2), and, for each assignment element E in V, // S is not a tuple- like type and the numeric index signature type of S is assignable to the target given in E. var temp = [1, 2, 3]; var _e = temp.slice(), c0 = _e[0], c1 = _e[1]; // Error var _f = temp.slice(), c2 = _f[0], c3 = _f[1]; // Error function foo(idx) { return { 2: true }; } var _g = foo(1), c4 = _g[0], c5 = _g[1], c6 = _g[2]; // Error