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function stringConvert() { var a = []; var s1 = "F", s2 = "1.3", s3 = "5"; for (var i = 0; i < 10; i++) { a[0] = 1 >> s1; a[1] = 10 - s2; a[2] = 15 * s3; a[3] = s3 | 32; a[4] = s2 + 60; // a[5] = 9 + s3; // a[6] = -s3; a[7] = s3 & "7"; // a[8] = ~s3; } return a.toString(); } assertEq(stringConvert(), "1,8.7,75,37,1.360,,,5");