javaScript statement and expression

I am using these two words, ‘statement’ and ‘expression,’ in many places. In our code, sometimes we produce values, like 10 + 10 equals 20. Other times, we have lines of code that only access something, like conditional statements. These do not produce any values; they just take specific actions. Based on these, we differentiate between expressions and statements. Simply put, expressions produce values, while statements only take actions.

Expression: Below is an example where 10 is added to 10. Here, a value is produced, so this is an expression.

>>>   10 + 10 

Here all are expression 

2 + 2 

3 + 7

1 + 2 + 3  * ( 8 ** 9 ) – Math.sqrt(4 , 0 ) 

math.min(2, 22)

Math.max ( 3 , 94 )

Null 

True

False

2

4.0

But when these values are assigned somewhere else, then it will be considered as a statement, like the entire following is a statement:

Var assignValue = 10 + 10 ;

Statement: On the other hand, a statement will just take action, like loop conditions and many other things.

if(10 < 20 ) {

console.log(“yes it is true” )

} else {

console.log(“no it is false”);

}

Above, just one action is being taken. Based on the expressions inside, some code has been executed several times, following the same principle, others.

for(expressions) {

// some code 

}

Do {

// some code here 

} while(expressions) ; 

While (expression) ;

while(expression){

// some code here 

} 

Again, notice that statements can span multiple lines, while expressions often occur on a single line. So, while it can be challenging to distinguish between expressions and statements, there are some differences to consider.

Different kinds of functions: We know that functions can also be stored in variables. Now, if we store a function in a variable, what would it be? An expression or a statement? Yes, according to our discussion, it would indeed be an expression.

In a function expression, when a function is stored in a variable, it becomes a function expression

Var someFunc = function (parameter){

// some code 

}

When a function is taken in a normal way, it becomes a function statement

Function aFun(params) {

// code }