Java script operators
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This document discusses different types of JavaScript operators including arithmetic, comparison, logical, assignment, conditional, and bitwise operators. It provides examples and descriptions of common operators like addition, subtraction, equality, AND, OR, assignment, increment, decrement and more. The document was prepared by trainees of Baabtra as part of a mentoring program and provides contact details for Baabtra, a mentoring company based in Kerala, India.
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Java script operators
- 2. Disclaimer: This presentation is prepared by trainees of baabtra as a part of mentoring program. This is not official document of baabtra –Mentoring Partner Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt . Ltd
- 4. What is an operator? Simple answer can be given using expression 4 + 5 is equal to 9. Here 4 and 5 are called operands and + is called operator. JavaScript language supports following type of operators.
- 5. • Arithmetic Operators • Comparision Operators • Logical (or Relational) Operators • Assignment Operators • Conditional (or ternary) Operators
- 6. The Arithmatic Operators: Operator Description + Adds two operands - Subtracts second operand from the first * Multiply both operands / Divide numerator by denumerator % Modulus Operator and remainder of after an integer division ++ Increment operator, increases integer value by one -- Decrement operator, decreases integer value by one
- 7. • Addition operator (+) works for Numeric as well as Strings. e.g. "a" + 10 will give "a10"
- 8. The Comparison Operators: Operator Description == Checks if the value of two operands are equal or not, if yes then condition becomes true. != Checks if the value of two operands are equal or not, if values are not equal then condition becomes true. > Checks if the value of left operand is greater than the value of right operand, if yes then condition becomes true. < Checks if the value of left operand is less than the value of right operand, if yes then condition becomes true. >= Checks if the value of left operand is greater than or equal to the value of right operand, if yes then condition becomes true. <= Checks if the value of left operand is less than or
- 9. The Logical Operators: Operator Description && Called Logical AND operator. If both the operands are non zero then then condition becomes true. || Called Logical OR Operator. If any of the two operands are non zero then then condition becomes true. ! Called Logical NOT Operator. Use to reverses the logical state of its operand. If a condition is true then Logical NOT operator will make false.
- 10. The Bitwise Operators: Operator Description & Called Bitwise AND operator. It performs a Boolean AND operation on each bit of its integer arguments. | Called Bitwise OR Operator. It performs a Boolean OR operation on each bit of its integer arguments. ^ Called Bitwise XOR Operator. It performs a Boolean exclusive OR operation on each bit of its integer arguments. Exclusive OR means that either operand one is true or operand two is true, but not both. ~ Called Bitwise NOT Operator. It is a is a unary operator and operates by reversing all bits in the operand. << Called Bitwise Shift Left Operator. It moves all bits in its first operand to the left by the number of places specified in the second operand. New bits are filled with zeros. Shifting a value left by one position is equivalent to multiplying by 2, shifting two positions is equivalent to multiplying by 4, etc. >> Called Bitwise Shift Right with Sign Operator. It moves all bits in its first operand to the right by the number of places specified in the second operand. The bits filled in on the left depend on the sign bit of the original operand, in order to preserve the sign of the result. If the first operand is positive, the result has zeros placed in the high bits; if the first operand is negative, the result has ones placed in the high bits. Shifting a value right one place is equivalent to dividing by 2 (discarding the remainder), shifting right two places is equivalent to integer division by 4, and so on. >>> Called Bitwise Shift Right with Zero Operator. This operator is just like the >> operator, except that the bits shifted in on the left are always zero,
- 11. The Assignment Operators: Operator Description = Simple assignment operator, Assigns values from right side operands to left side operand += Add AND assignment operator, It adds right operand to the left operand and assign the result to left operand -= Subtract AND assignment operator, It subtracts right operand from the left operand and assign the result to left operand *= Multiply AND assignment operator, It multiplies right operand with the left operand and assign the result to left operand /= Divide AND assignment operator, It divides left operand with the right operand and assign the result to left operand %= Modulus AND assignment operator, It takes modulus using two operands and assign the result to left operand
- 12. Contact Us Emarald Mall (Big Bazar Building) Mavoor Road, Kozhikode, Kerala, India. Ph: + 91 – 495 40 25 550 NC Complex, Near Bus Stand Mukkam, Kozhikode, Kerala, India. Ph: + 91 – 495 40 25 550 Start up Village Eranakulam, Kerala, India. Email: [email protected]