Node.js | console.error() Function
The console.error() function from console class of Node.js is used to display an errror messages on the console. It prints to stderr with newline.
Syntax:
console.error([data][, ...args])
Parameter: This function can contains multiple parameters. The first parameter is used for the primary message and other parameters are used for substitution values.
Return Value: The function returns an error message.
Below programs demonstrates the working of console.error() function:
Program 1:
// Store number to variablenum = 20 // Check conditionif (num < 100) { console.log("Enter number greater then 100");}else { console.error("correct choice");} |
Output:
Enter number greater then 100
Program 2:
// Store number to variablex = 20;y = 50; // Check conditionif (x > y) { console.error('%d is greater then %d', x, y);}else { console.error('%d is less then or equal to %d', x, y);} |
Output:
20 is less then or equal to 50
