JavaScript has the following types of operators
An assignment operator assigns a value to its left operand based on the value of its right operand. The simple assignment operator is equal (=), which assigns the value of its right operand to its left operand. That is, x = y assigns the value of y to x.
A comparison operator compares its operands and returns a logical value based on whether the comparison is true. The operands can be numerical, string, logical, or object values. Strings are compared based on standard lexicographical ordering, using Unicode values. In most cases, if the two operands are not of the same type, JavaScript attempts to convert them to an appropriate type for the comparison. This behavior generally results in comparing the operands numerically. The sole exceptions to type conversion within comparisons involve the === and !== operators, which perform strict equality and inequality comparisons. These operators do not attempt to convert the operands to compatible types before checking equality.
An arithmetic operator takes numerical values (either literals or variables) as their operands and returns a single numerical value. The standard arithmetic operators are addition (+), subtraction (-), multiplication (*), and division (/). These operators work as they do in most other programming languages when used with floating point numbers (in particular, note that division by zero produces Infinity).
A bitwise operator treats their operands as a set of 32 bits (zeros and ones), rather than as decimal, hexadecimal, or octal numbers. For example, the decimal number nine has a binary representation of 1001. Bitwise operators perform their operations on such binary representations, but they return standard JavaScript numerical values.
| Logical operators are typically used with Boolean (logical) values; when they are, they return a Boolean value. However, the && and | operators actually return the value of one of the specified operands, so if these operators are used with non-Boolean values, they may return a non-Boolean value. The logical operators are described in the following table. |
In addition to the comparison operators, which can be used on string values, the concatenation operator (+) concatenates two string values together, returning another string that is the union of the two operand strings.
The conditional operator is the only JavaScript operator that takes three operands. The operator can have one of two values based on a condition.
The comma operator (,) evaluates both of its operands and returns the value of the last operand. This operator is primarily used inside a for loop, to allow multiple variables to be updated each time through the loop. It is regarded bad style to use it elsewhere, when it is not necessary. Often two separate statements can and should be used instead.
A unary operation is an operation with only one operand.
A relational operator compares its operands and returns a Boolean value based on whether the comparison is true.
To read more about the expressions and operators in details with examples visit operators CSS
Circles offer a fast and simple way to do something over and over. This chapter of the JavaScript Direct presents the distinctive emphasis explanations accessible to JavaScript.
You can think of a circle as a computerized adaptation of the amusement where you tell somebody to require X steps in one course, at that point Y steps in another.
There are numerous distinctive sorts of circles, but they all basically do the same thing: they rehash an activity a few number of times.
The different circle instruments offer distinctive ways to decide the begin and conclusion focuses of the circle. There are different circumstances that are more effectively served by one sort of circle over the others.
## Loop statements in JavaScript
for statement
do while statement
while statement
labeled statement
break statement
continue statement
for in statement
for of statement
Check loops in JS to see examples on each statement.