tencent cloud

var a = 10, b = 20;

// Addition
console.log(30 === a + b);
// Subtraction
console.log(-10 === a - b);
// Multiplication
console.log(200 === a * b);
// Division
console.log(0.5 === a / b);
// Complementation
console.log(10 === a % b);

var a = '.w' , b = 'xs';

// String concatenation
console.log('.wxs' === a + b);

var a = 10, b = 20;

// Auto increment
console.log(10 === a++);
console.log(12 === ++a);
// Auto decrement
console.log(12 === a--);
console.log(10 === --a);
// Positive value
console.log(10 === +a);
// Negative value
console.log(0-10 === -a);
// Not
console.log(-11 === ~a);
// Negate
console.log(false === !a);
// Delete
console.log(true === delete a.fake);
// Void
console.log(undefined === void a);
// Typeof
console.log("number" === typeof a);

var a = 10, b = 20;

// Left shift
console.log(80 === (a << 3));
// Unsigned right shift
console.log(2 === (a >> 2));
// Signed right shift
console.log(2 === (a >>> 2));
// AND
console.log(2 === (a & 3));
// XOR
console.log(9 === (a ^ 3));
// OR
console.log(11 === (a | 3));

var a = 10, b = 20;

// Less than
console.log(true === (a < b));
// Greater than
console.log(false === (a > b));
// Less than or equal to
console.log(true === (a <= b));
// Greater than or equal to
console.log(false === (a >= b));

var a = 10, b = 20;

// Equal sign
console.log(false === (a == b));
// Not equal sign
console.log(true === (a != b));
// Equivalent sign
console.log(false === (a === b));
// Not equivalent sign
console.log(true === (a !== b));

var a = 10;

a = 10; a *= 10;
console.log(100 === a);
a = 10; a /= 5;
console.log(2 === a);
a = 10; a %= 7;
console.log(3 === a);
a = 10; a += 5;
console.log(15 === a);
a = 10; a -= 11;
console.log(-1 === a);
a = 10; a <<= 10;
console.log(10240 === a);
a = 10; a >>= 2;
console.log(2 === a);
a = 10; a >>>= 2;
console.log(2 === a);
a = 10; a &= 3;
console.log(2 === a);
a = 10; a ^= 3;
console.log(9 === a);
a = 10; a |= 3;
console.log(11 === a);

var a = 10, b = 20;

// Logical AND
console.log(20 === (a && b));
// Logical OR
console.log(10 === (a || b));

var a = 10, b = 20;

//Conditional operator
console.log(20 === (a >= 10 ? a + 10 : b + 10));
//Comma operator
console.log(20 === (a, b));