ES6 | Operators
An expression is a special kind of statement that evaluates to a value. Every expression consists of
- Operands: Represents the data.
- Operator: which performs certain operations on operands.
Consider the following expression – 2 / 3, in the expression, 2 and 3 are operands and the symbol /is the operator.
- Arithmetic Operators
- Relational Operators
- Logical Operators
- Bitwise Operators
- Assignment Operators
- Type Operators
- Miscellaneous Operators
|Addition(+)||Returns sum of the operands.|
|Subtraction(-)||Returns the difference of the values.|
|Multiplication(*)||Returns the product of the values.|
|Division(/)||Performs division and returns the quotient.|
|Modulus(%)||Performs division and returns the remainder.|
|Increment(++)||Increases the value of the variable by one.|
|Decrement(- -)||Decreases the value of the variable by one.|
Sum : 13 Difference : 8 Product : 26.25 Quotient : 4.2 Remainder : 0.5 Value of num1 after pre-increment : 11.5 Value of num1 after post-increment : 11.5 Value of num2 after pre-decrement : 1.5 Value of num2 after post-decrement : 1.5
Relational Operators: An operator that compares two values. Relational operators are sometimes called comparison operators.
|>||Returns true if the left operand is greater than right else, false.|
|<||Returns true if the left operand is lesser than right else, false.|
|>=||Returns true if the left operand is greater than or equal to right else, false.|
|<=||Returns true if the left operand is lesser than or equal to right else, false.|
|==||Returns true if both the operands are same else, false./td>|
|==||Returns true if both the operands are the same else, false.|
|!=||Returns true if both the operands are not same else, false.|
11>12 : false 11=11 : true 12<=12 : true 11==11 : true 11!=11 : false
Logical Operators: Logical operators are used to combine two or more relational statements.
|And(&&)||Return true if all the relational statements combined with && are true, else false.|
|Or(||)||Return true if at least one of the relational statements combined with || is true, else false.<|
|!||Returns the inverse of the relational statement’s result.|
13>12 && 12>11 && 9==9 : true 11>12 && 12>11 && 9==9 : false 11>12 || 12>11 || 9==9 : true 11>12 && (12>11 || 9==9) : false
Bitwise Operators: A bitwise operator is an operator used to perform bitwise operations on bit patterns or binary numerals that involve the manipulation of individual bits.
|Bitwise AND(&)||Compares each bit of the first operand to the corresponding bit of the second operand. If both bits are 0, the corresponding result bit is set to 0, else 1.|
|Bitwise OR(|)||Compares each bit of the first operand to the corresponding bit of the second operand. If both bits are 1, the corresponding result bit is set to 1, else 0.|
|Bitwise XOR(^)||Inverts the bits of its corresponding operand|
|Left shift(<<)||Will shift the ‘n’ number of bits to the left side, and n bits with the value 0 will be filled on the right side. Example: x=2, t=4, x<<t, for easy evaluation it performs .|
|Right shift(>>)||Will shift the ‘n’ number of bits to the right side, and ‘n’ bits with the value 0 will be filled on the left side. Example: x=2, t=4, x>>t, for easy evaluation it performs .|
|Zero-fill right shift||Shifts a in binary representation b (< 32) bits to the right, discarding bits shifted off, and shifting in zeroes from the left|
2&3 : 2 2|3 : 3 2^3 : 1 ~4 : -5 2<>3 : 0
Assignment Operators: An assignment operator is the operator used to assign a new value to the variable, property, event or indexer element.
|Simple Assignment(=)||Assigns the value of the right operand to left operand.|
|Add and Assignment(+=)||It adds the right operand to the left operand and assigns the result to the left operand.|
|Subtract and Assignment(-=)||It subtracts the right operand from the left operand and assigns the result to the left operand.|
|Multiply and Assignment(*=)||It multiplies the right operand with the left operand and assigns the result to the left operand.|
|Divide and Assignment(/=)||It divides the left operand with the right operand and assigns the result to the left operand.|
a = b : 10 a += b : 20 a -= b : 10 a *= b : 100 a /= b : 10
Type Operators: It is a unary operator. This operator returns the data type of the operand.
a is number b is string c is : boolean d is : function
Miscellaneous Operators:These are the operators that, does different operators when used at different types of occasions.
|Negation operator (-)||Changes the sign of a value.|
|Concatenation operator (+)||+, when applied to strings it appends them.|
|Conditional Operator (?)||It can use as a ternary operator.|
a+b : GeeksforGeeks=>A Computer science portal. 2>3 :No, It is not. d = -d : -9