What are the comparison operators in JavaScript?
Comparison operators
| Operator | Description |
|---|---|
| Equal ( == ) | Returns true if the operands are equal. |
| Not equal ( != ) | Returns true if the operands are not equal. |
| Strict equal ( === ) | Returns true if the operands are equal and of the same type. See also Object.is and sameness in JS. |
What are the 5 different comparison operators?
Comparison operators — operators that compare values and return true or false . The operators include: > , < , >= , <= , === , and !== . Logical operators — operators that combine multiple boolean expressions or values and provide a single boolean output.
What are the 6 comparison operators?
There are six main comparison operators: equal to, not equal to, greater than, greater than or equal to, less than, and less than or equal to. Different programming languages use different syntax to express these operators, but the meanings are the same.
What is == vs === in JavaScript?
= Vs == VS === in JavaScript == in JavaScript is used for comparing two variables, but it ignores the datatype of variable. === is used for comparing two variables, but this operator also checks datatype and compares two values. It returns true only if both values and data types are the same for the two variables.
Is used to compare two operands?
Compares two operands to determine if the first operand is not equal to the second operand. The result of a comparison is always True, False, or Null. The following rules are used to determine how the operands are compared….
| Comparison Operator Symbol | Name |
|---|---|
| == | compares operands |
| <> | not equal to |
| < | less than |
| > | greater than |
What does => mean in JavaScript function?
In javascript the => is the symbol of an arrow function expression. A arrow function expression does not have its own this binding and therefore cannot be used as a constructor function. for example: var words = ‘hi from outside object’; let obj = { words: ‘hi from inside object’, talk1: () => {console.
When to use a comparison operator in JavaScript?
When two operands are not of the same type, JavaScript tries to convert the operands to an appropriate type for the comparison. If both operands are objects, JavaScript compares references that are not equal, when operands refer to different objects in memory.
How do you compare two values in JavaScript?
To compare two values, you use the comparison operators. The following table illustrates the JavaScript comparison operators: A comparison operator returns a Boolean value indicating that the comparison is true or not. See the following example: The comparison operator takes at least two values (or operands).
When is the expression comparing objects true in JavaScript?
The expression comparing objects is true only if the operands refer to the same object. Null and undefined are strictly equal to themselves and abstractly equal to each other. The equal or weak operator converts the operands during the comparison (temporarily).
When to use the equality operator in JavaScript?
The equality operator (a == b) converts the operands if they are not of the same type, then applies strict comparison. If both operands are objects, JavaScript compares internal references which are equal when operands refer to the same object in memory. If the operands are not equal, inequality operator (!=) returns true.