What does <= mean in JavaScript?
The less than or equal operator ( <= ) returns true if the left operand is less than or equal to the right operand, and false otherwise.
How do you write less than in JavaScript?
The comparison operators take simple values (numbers or string) as arguments and evaluate either true or false….Comparison Operators.
| Operator | Comparisons | Description |
|---|---|---|
| Less than or equal (<=) | x<=y | Returns true if the left operand is less than or equal to the right operand. |
Is void a unary operator?
Mathematically, an operation is a calculation on one or more values called operands mapping to an output value. An operator is a symbol or sign that maps operands to output values. A unary operation is an operation with only one operand….Introduction.
| Operator | Explanation |
|---|---|
| void | Discards a return value of an expression. |
Is less than or equal to JavaScript?
Comparison Operators
| Operator | Description | Comparing |
|---|---|---|
| > | greater than | x > 8 |
| < | less than | x < 8 |
| >= | greater than or equal to | x >= 8 |
| <= | less than or equal to | x <= 8 |
What does === mean in Nodejs?
=== (Triple equals) is a strict equality comparison operator in JavaScript, which returns false for the values which are not of a similar type. This operator performs type casting for equality. If we compare 2 with “2” using ===, then it will return a false value.
What do 3 dots mean in typescript?
spread operator
The three dots are known as the spread operator from Typescript (also from ES7). The spread operator return all elements of an array. Like you would write each element separately: let myArr = [1, 2, 3]; return [1, 2, 3]; //is the same as: return […myArr];
When to use less than or equal in JavaScript?
Less than or equal (<=) – JavaScript | MDN The less than or equal operator (<=) returns true if the left operand is less than or equal to the right operand, and false otherwise. Skip to main content Skip to search
What does statement not greater than 0 mean in JavaScript?
Mureinik’s answer is completely correct, but seeing as “understanding falsey values” is one of the more important, less intuitive parts of JavaScript, it’s perhaps worth explaining a little more. So what does (!a) mean? It means, find the boolean truthiness of “a” and flip it; true becomes false and false becomes true.
Which is the symbolic representation of less than or equal to?
The symbolic representation of Less than or Equal to is <=. In the above code snippet we assigned lesser value to the left operand and greater value to the right operand, we used less than or equal to operator, so the result gives ‘true’.
When to use logical not ( ! ) in JavaScript?
– JavaScript | MDN The logical NOT (!) operator (logical complement, negation) takes truth to falsity and vice versa. It is typically used with Boolean (logical) values. When used with non-Boolean values, it returns false if its single operand can be converted to true; otherwise, returns true.