hex_numbers_in_parentheses_for_prototype_functions: { input: { (-2); (-2).toFixed(0); (2); (2).toFixed(0); (0.2); (0.2).toFixed(0); (0.00000002); (0.00000002).toFixed(0); (1000000000000000128); (1000000000000000128).toFixed(0); } expect_exact: "-2;(-2).toFixed(0);2;2..toFixed(0);.2;.2.toFixed(0);2e-8;2e-8.toFixed(0);0xde0b6b3a7640080;(0xde0b6b3a7640080).toFixed(0);" } comparisons: { options = { comparisons: true, } input: { console.log( ~x === 42, x % n === 42 ); } expect: { console.log( 42 == ~x, x % n == 42 ); } } evaluate_1: { options = { evaluate: true, unsafe_math: false, } input: { console.log( x + 1 + 2, x * 1 * 2, +x + 1 + 2, 1 + x + 2 + 3, 1 | x | 2 | 3, 1 + x-- + 2 + 3, 1 + (x*y + 2) + 3, 1 + (2 + x + 3), 1 + (2 + ~x + 3), -y + (2 + ~x + 3), 1 & (2 & x & 3), 1 + (2 + (x |= 0) + 3) ); } expect: { console.log( x + 1 + 2, 1 * x * 2, +x + 1 + 2, 1 + x + 2 + 3, 3 | x, 1 + x-- + 2 + 3, x*y + 2 + 1 + 3, 1 + (2 + x + 3), 2 + ~x + 3 + 1, -y + (2 + ~x + 3), 0 & x, 2 + (x |= 0) + 3 + 1 ); } } evaluate_2: { options = { evaluate: true, unsafe_math: true, } input: { console.log( x + 1 + 2, x * 1 * 2, +x + 1 + 2, 1 + x + 2 + 3, 1 | x | 2 | 3, 1 + x-- + 2 + 3, 1 + (x*y + 2) + 3, 1 + (2 + x + 3), 1 & (2 & x & 3), 1 + (2 + (x |= 0) + 3) ); } expect: { console.log( x + 1 + 2, 2 * x, 3 + +x, 1 + x + 2 + 3, 3 | x, 6 + x--, 6 + x*y, 1 + (2 + x + 3), 0 & x, 6 + (x |= 0) ); } } evaluate_3: { options = { evaluate: true, unsafe: true, unsafe_math: true, } input: { console.log(1 + Number(x) + 2); } expect: { console.log(3 + +x); } } evaluate_4: { options = { evaluate: true, } input: { console.log( 1+ +a, +a+1, 1+-a, -a+1, +a+ +b, +a+-b, -a+ +b, -a+-b ); } expect: { console.log( +a+1, +a+1, 1-a, 1-a, +a+ +b, +a-b, -a+ +b, -a-b ); } } issue_1710: { options = { evaluate: true, } input: { var x = {}; console.log((x += 1) + -x); } expect: { var x = {}; console.log((x += 1) + -x); } expect_stdout: true } unary_binary_parenthesis: { input: { var v = [ 0, 1, NaN, Infinity, null, undefined, true, false, "", "foo", /foo/ ]; v.forEach(function(x) { v.forEach(function(y) { console.log( +(x*y), +(x/y), +(x%y), -(x*y), -(x/y), -(x%y) ); }); }); } expect: { var v = [ 0, 1, 0/0, 1/0, null, void 0, true, false, "", "foo", /foo/ ]; v.forEach(function(x) { v.forEach(function(y) { console.log( +x*y, +x/y, +x%y, -x*y, -x/y, -x%y ); }); }); } expect_stdout: true }