Console

By default, the message console window in the Preview window is collapsed. and buttons are used to display/collapse it.

The global Console object implementing the basic Console function was added within the JavaScript context.

Console Methods

When running the node, the console messages are recorded to the server log, if the message type matches the logging level (error, warning, information):

The error logging level:

The warning logging level:

The information logging level:

Other methods:

Examples:

Code of outputting messages to the console:

import { OutputTable, InputTables } from "builtIn/Data";

function f() { return "something"; }

console.info("Information");
console.warn("Warning!");
console.error("Error!!!");
console.log(true);
console.log(undefined);
console.log(null);
console.log(1, 2, 3);
console.log(Math);
console.log(OutputTable);
console.log(f);
console.log(OutputTable.Append);
console.log(new RegExp("a+"));
console.log(new Error("error"));
console.log(new String("Str"));
console.log(new Boolean(true));
console.log(new Date());
console.log(new ArrayBuffer(10));
console.log(Symbol());
console.log(Symbol("aaa"));
console.log(Object(Symbol()));
console.log(new Proxy({}, {}));
console.log([1, InputTables, /^[0..9]+$/]);
console.assert(0 == 0);
console.assert(1 == 0);
console.assert(1 == 0, "1 != 0");
console.assert(1 == 0, "lie", "1 != 0");

Outputting to the console:

Information
Warning!
Error!!!
true
undefined
null
1 2 3
[object Math]
[object Object]
function f() { return "something"; }
function Append() { [native code] }
/a+/
Error: error
[object String]
[object Boolean]
Mon Dec 17 2018 18:40:56 GMT+0300 (RTZ 2 (winter))
[object ArrayBuffer]
Symbol()
Symbol(aaa)
[object Symbol]
[object Proxy]
1,[object Object],/^[0..9]+$/
Assertion failed:
Assertion failed: 1 != 0
Assertion failed: lie 1 != 0