Operators

• is set operator:

bool a = true, b;
console.log(a?); // true
console.log(b?); // false

• clone of variable, if object have method __clone__, object will be copied with it:

Array a = [], b = clone a;
b[0] = 584; // a is []		

• pow operator:

int pow = 5 ** 2; // 25

• CoffeeScript's modulo operator:

Array nums = [0..9];
console.log(nums[4 %% nums.length]);  // 4
console.log(nums[14 %% nums.length]); // 4

• Existential assignment from CoffeeScript:

defaults(Object input, Object defaults) {
    for int key in defaults {
        input[key] ?= defaults[key];
    }

    return input;
}

console.log(defaults({ 
    compress: true 
}, { 
    compress: false, 
    mangle: false
})); // { compress: true, mangle: false }

• Existential or also from CoffeeScript:

int a, b = 3;
		
console.log(a ? b); // 3
a = 11;
console.log(a ? b); // 11

• Binary operator is:

bool isRegExp = /[^\d]+/g is RegExp; // true

• Binary operator isnt:

bool isntString = 3.14 isnt String; // true

• As in CoffeeScript, you can use chained comprassions:

if 1 < x < 100 {
    console.log("x E ( 1 ; 100 )");
}