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instanceof.cjs
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instanceof.cjs
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// Test instanceof operator and built-in constructors
// Test instanceof with primitives
let str = "hello";
let num = 42;
let bool = true;
let obj = {};
Ant.println(str instanceof String); // true
Ant.println(num instanceof Number); // true
Ant.println(bool instanceof Boolean); // true
Ant.println(obj instanceof Object); // true
// Test instanceof with wrong types
Ant.println(str instanceof Number); // false
Ant.println(num instanceof String); // false
Ant.println(bool instanceof Object); // false
Ant.println(obj instanceof Function); // false
// Test instanceof with functions
function myFunc() {
return 42;
}
let funcExpr = function() {
return "hello";
};
Ant.println(myFunc instanceof Function); // true
Ant.println(funcExpr instanceof Function); // true
Ant.println(myFunc instanceof Object); // false
// Test String() constructor
Ant.println(String(42)); // "42"
Ant.println(String(true)); // "true"
Ant.println(String(false)); // "false"
Ant.println(String(null)); // "null"
Ant.println(String({})); // [object Object] or similar
let converted = String(123);
Ant.println(converted instanceof String); // true
Ant.println(typeof converted); // string
// Test Number() constructor
Ant.println(Number("123")); // 123
Ant.println(Number("3.14")); // 3.14
Ant.println(Number(true)); // 1
Ant.println(Number(false)); // 0
Ant.println(Number(null)); // 0
let numConverted = Number("456");
Ant.println(numConverted instanceof Number); // true
Ant.println(typeof numConverted); // number
// Test Boolean() constructor
Ant.println(Boolean(1)); // true
Ant.println(Boolean(0)); // false
Ant.println(Boolean("hello")); // true
Ant.println(Boolean("")); // false
Ant.println(Boolean(null)); // false
Ant.println(Boolean({})); // true
let boolConverted = Boolean("test");
Ant.println(boolConverted instanceof Boolean); // true
Ant.println(typeof boolConverted); // boolean
// Test Object() constructor
let emptyObj = Object();
Ant.println(typeof emptyObj); // object
Ant.println(emptyObj instanceof Object); // true
// Compare with typeof
Ant.println(typeof str); // string
Ant.println(typeof num); // number
Ant.println(typeof bool); // boolean
Ant.println(typeof obj); // object
Ant.println(typeof myFunc); // function
// Mixed operations
let x = Number("10");
let y = Number("20");
let result = x + y;
Ant.println(result); // 30
Ant.println(result instanceof Number); // true
let greeting = String("Hello ") + String("World");
Ant.println(greeting); // Hello World
Ant.println(greeting instanceof String); // true

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