Euresys Coaxlink - Page 27

Euresys GenApi scriptsCoaxlink Programmer's Guide
var x = 3;
x += 2;
x -= 1;
x *= 3;
x /= 5;
assertEqual(2.4, x);
// Logical OR: ||
assertEqual(true, false || true);
assertEqual('ok', false || 'ok');
assertEqual('ok', 'ok' || 'ignored');
// Logical AND: &&
assertEqual(false, true && false);
assertEqual(true, true && true);
assertEqual('ok', true && 'ok');
// Identity (strict equality) and non-identity (strict inequality): === !==
assertEqual(true, 1 === 2 / 2);
assertEqual(true, 1 !== 2);
// Equality (==) and inequality (!=) JavaScript operators lead to confusing
// and inconsistent conversions of their operands. They are not implemented
// in Euresys GenApi Script.
// Relational operators: < <= > >=
assert(1 < 2);
assert(1 <= 1);
assert(2 > 1);
assert(2 >= 2);
// Addition and subtraction: + -
assertEqual(1, 3 - 2);
assertEqual(5, 2 + 3);
assertEqual("abcdef", "abc" + "def"); // if one of the operands is of type
assertEqual("abc123", "abc" + 123); // string, all operands are converted
assertEqual("123456", 123 + "456"); // to string, and concatenated
// Multiplication and division: * /
assertEqual(4.5, 3 * 3 / 2);
// Prefix operators: ++ -- ! typeof
var x = 0;
assertEqual(1, ++x);
assertEqual(1, x);
assertEqual(0, --x);
assertEqual(0, x);
assertEqual(true, !false);
assertEqual('boolean', typeof false);
assertEqual('number', typeof 0);
assertEqual('string', typeof '');
assertEqual('undefined', typeof undefined);
assertEqual('function', typeof function () {});
assertEqual('object', typeof {});
assertEqual('object', typeof []);
assertEqual('object', typeof /re/);
assertEqual('object', typeof null);
// Postfix operators: ++ --
var x = 0;
assertEqual(0, x++);
assertEqual(1, x);
assertEqual(1, x--);
assertEqual(0, x);
// Function call: ()
assertEqual(6, multiply(3, 2));
// Member access: . []
var obj = { a: 1 };
assertEqual(1, obj.a);
obj['4'] = 'four';
assertEqual('four', obj[2*2]);
}
// Scope of variables
function OuterFunction() {
var x = 'outer x';
function Shadowing() {
assertEqual(undefined, x);
var x = 'inner x';
assertEqual('inner x', x);
}
function Nested() {
assertEqual('outer x', x);
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