In Node.js, the console object provides a range of methods for printing and debugging messages to the console. Here are some commonly used console methods:
console.log(message[, ...args]): This method is used to print messages to the console. It accepts a message string as the first argument and optional additional arguments, which are treated as substitutions for format specifiers in the message string. It is similar to the
console.log()
function in browsers.console.error(message[, ...args]): This method is used to print error messages to the console. It works similar to
console.log()
, but the output is typically displayed with an error indicator. It is useful for printing error stack traces or error messages.console.warn(message[, ...args]): This method is used to print warning messages to the console. It works similar to
console.log()
, but the output is typically displayed with a warning indicator. It is useful for displaying non-fatal warnings or deprecation notices.console.info(message[, ...args]): This method is used to print informational messages to the console. It works similar to
console.log()
, but the output is typically displayed with an info indicator. It is useful for displaying informative messages or status updates.console.debug(message[, ...args]): This method is used to print debug messages to the console. It works similar to
console.log()
, but the output is typically displayed with a debug indicator. It is useful for displaying detailed debug information during development or debugging sessions.console.assert(expression[, message[, ...args]]): This method is used to check if an expression is true. If the expression is false, it prints an error message to the console. The message and additional arguments are optional and can be used to provide more context about the assertion.
console.clear(): This method is used to clear the console, removing any previously printed messages.
These are some of the commonly used console methods in Node.js. They provide various ways to log and display messages during development and debugging.
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