console
Scripts get a capturing console object aligned with the web Console API. Log lines are shown in the send Console and the response Logs tab after the request completes.
Severity in the UI:
- log —
console.log,console.debug, andconsole.trace - warn —
console.warn(and timer misuse warnings) - error —
console.errorand failedconsole.assert
HarborClient differences from a browser DevTools console: groups indent text (they are not collapsible), console.table renders as an HTML table in the Logs UI (with an ASCII fallback for export), timers use host wall-clock time, and stack traces from console.trace sanitize absolute paths.
console.assert(condition, ...args)
Available since v2.0.0
Signature:(condition?: unknown, ...args: unknown[]) => void
When condition is truthy, nothing is logged. When falsy, emits an error line: Assertion failed, or Assertion failed: … when extra arguments are provided. See console.assert() on MDN.
console.assert(hc.response.code === 200, "expected 200, got", hc.response.code);console.clear()
Available since v2.0.0
Signature:() => void
Clears all console lines captured so far in the current script run and resets group nesting depth. See console.clear() on MDN.
console.clear();console.debug(...args)
Available since v2.0.0
Signature:(...args: unknown[]) => void
Same as console.log (captured at the log level). See console.debug() on MDN.
console.debug("retry count", 2);console.error(...args)
Available since v2.0.0
Signature:(...args: unknown[]) => void
Same argument formatting as console.log, captured at the error level (styled as an error in the Logs UI). See console.error() on MDN.
console.error("missing token");console.group(...label)
Available since v2.0.0
Signature:(...label: unknown[]) => void
Logs an optional label, then increases indentation for following lines by two spaces. See console.group() on MDN.
console.group("auth");
console.log("setting bearer token");
console.groupEnd();console.groupCollapsed(...label)
Available since v2.0.0
Signature:(...label: unknown[]) => void
Same as console.group in HarborClient (labels and indentation only; groups are not collapsible in the Logs UI). See console.groupCollapsed() on MDN.
console.groupCollapsed("details");
console.log("nested");
console.groupEnd();console.groupEnd()
Available since v2.0.0
Signature:() => void
Ends the current group and decreases indentation (floored at zero). See console.groupEnd() on MDN.
console.group("outer");
console.log("inside");
console.groupEnd();console.log(...args)
Available since v2.0.0
Signature:(...args: unknown[]) => void
Logs one or more values. Non-string arguments are JSON-stringified; arguments are joined with spaces. See console.log() on MDN.
console.log("token set:", hc.request.variables.get("token"));console.table(data, columns?)
Available since v2.0.0
Signature:(data?: unknown, columns?: unknown) => void
Formats arrays and objects as a table and logs them. In the Logs UI this appears as an HTML table; exports keep an ASCII text fallback. The optional columns argument restricts which columns appear. See console.table() on MDN for supported shapes.
console.table([
{ name: "Ada", age: 36 },
{ name: "Grace", age: 85 },
]);
console.table(
[
{ name: "Ada", age: 36 },
{ name: "Grace", age: 85 },
],
["name"]
);console.time(label?)
Available since v2.0.0
Signature:(label?: unknown) => void
Starts a named timer (default label "default"). Starting the same label twice logs a warn and leaves the original timer running. See console.time() on MDN.
console.time("fetch");console.timeEnd(label?)
Available since v2.0.0
Signature:(label?: unknown) => void
Stops a named timer and logs label: <elapsed>ms. Ending a missing timer logs a warn. See console.timeEnd() on MDN.
console.time("fetch");
// ... work ...
console.timeEnd("fetch");console.timeLog(label?, ...args)
Available since v2.0.0
Signature:(label?: unknown, ...args: unknown[]) => void
Logs the current elapsed time for a named timer without stopping it. Extra arguments are appended after the timing line. A missing timer logs a warn. See console.timeLog() on MDN.
console.time("work");
console.timeLog("work", "checkpoint");
console.timeEnd("work");console.trace(...args)
Available since v2.0.0
Signature:(...args: unknown[]) => void
Logs Trace: (plus any arguments) and a path-sanitized stack trace at the log level. See console.trace() on MDN.
console.trace("reached branch");console.warn(...args)
Available since v2.0.0
Signature:(...args: unknown[]) => void
Same argument formatting as console.log, captured at the warn level (styled as a warning in the Logs UI). See console.warn() on MDN.
console.warn("token expires soon");