Console

The console module writes to and reads from the terminal.

Along with type(), console is one of only two names available without an import. console.log() is how a Ghost program writes a line of output.

The logging methods each prefix their output with a label, which is what separates them from log().

Output goes through the current scope's writer rather than straight to the process's standard output, so redirected output is respected — inside an http.handle() callback, every method here writes to the response body.

Methods

Every output method accepts any number of values, and joins them with a single space.

console.clear()

Clears the terminal.

console.clear()

console.error()

Outputs an error message to the console, prefixed with error:.

console.error("This is an error message")

// >> error: This is an error message

console.info()

Outputs an informative message to the console, prefixed with info:.

console.info("This is an info message")

// >> info: This is an info message

console.log()

Outputs a message to the console for general logging information, followed by a newline. Unlike the other logging methods it adds no prefix.

console.log("This is a log message")

// >> This is a log message

console.newLine()

Outputs a single blank line.

console.newLine()

console.write()

Outputs values without a trailing newline, so the next write continues on the same line.

console.write("Loading")
console.write("...")
console.newLine()

// >> Loading...

console.read()

Reads one line from standard input and returns it as a string, without the newline. If a string is passed, it is written first as a prompt. At end of input it returns null.

name = console.read("What is your name? ")

console.log("Hello, " + name)

console.warn()

Outputs a warning message to the console, prefixed with warning:.

console.warn("This is a warning message")

// >> warning: This is a warning message