#6 JavaScript Operators ( Arithmetic, Comparison, Logical)
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- Опубликовано: 17 дек 2023
- Certainly! Let's discuss arithmetic, comparison, and logical operators in JavaScript.
Arithmetic Operators:
1. *Addition (`+`):*
- Adds two values together.
- Example: `let sum = 3 + 5;` (The value of `sum` will be 8.)
2. *Subtraction (`-`):*
- Subtracts the right operand from the left operand.
- Example: `let difference = 8 - 3;` (The value of `difference` will be 5.)
3. *Multiplication (`*`):*
- Multiplies two values.
- Example: `let product = 4 * 6;` (The value of `product` will be 24.)
4. *Division (`/`):*
- Divides the left operand by the right operand.
- Example: `let quotient = 10 / 2;` (The value of `quotient` will be 5.)
5. *Modulus (`%`):*
- Returns the remainder of the division of the left operand by the right operand.
- Example: `let remainder = 7 % 3;` (The value of `remainder` will be 1.)
6. *Exponentiation (`**`):*
- Raises the left operand to the power of the right operand.
- Example: `let result = 2 ** 3;` (The value of `result` will be 8.)
Comparison Operators:
1. *Equal (`==`):*
- Checks if two values are equal, performing type coercion if necessary.
- Example: `let isEqual = 5 == '5';` (The value of `isEqual` will be `true` due to type coercion.)
2. *Strict Equal (`===`):*
- Checks if two values are equal without type coercion (strict equality).
- Example: `let isStrictEqual = 5 === '5';` (The value of `isStrictEqual` will be `false` due to different types.)
3. *Not Equal (`!=`):*
- Checks if two values are not equal, performing type coercion if necessary.
- Example: `let isNotEqual = 5 != '5';` (The value of `isNotEqual` will be `false` due to type coercion.)
4. *Strict Not Equal (`!==`):*
- Checks if two values are not equal without type coercion (strict inequality).
- Example: `let isStrictNotEqual = 5 !== '5';` (The value of `isStrictNotEqual` will be `true` due to different types.)
5. *Greater Than :*
- Checks if the left operand is greater than the right operand.
6. *Less Than :*
- Checks if the left operand is less than the right operand.
7. *Greater Than or Equal To:*
- Checks if the left operand is greater than or equal to the right operand.
8. *Less Than or Equal To:*
- Checks if the left operand is less than or equal to the right operand.
Logical Operators:
1. *Logical AND (`&&`):*
- Returns `true` if both operands are `true`.
2. *Logical OR (`||`):*
- Returns `true` if at least one of the operands is `true`.
3. *Logical NOT (`!`):*
- Returns `true` if the operand is `false`, and vice versa.
These operators are fundamental in JavaScript and are used extensively for performing various operations, making decisions, and controlling the flow of programs. Наука
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