Node JS While Loop - Node js tutorial

While loop is an important in control flow statement.
It allows code to be executed based on a Boolean condition.
It is equivalent to repeating if condition statement.
The expression in while block evaluated first before starting the code execution.
If the expression returns true, the block code is executed else not. It is termed as pre-test loop.

Syntax :

while (condition) 
{
  	\\block of code to execute until the condition in the while satisfies
}

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While Loop C

var x=0;
while (x!=5){
x++;
console.log("The value of x is : "+x);
}

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x is declared as 0.
The while part checks the condition as x is not equal to 5 as while (x!=5);
The loop block is stated with incrementing x value as x++. and the same is sent for output to console with the line of code “console.log("The value of x is : "+x)";.

Executing the while loop in the nodejs framework produces the output of the variable x:

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