node-eta

ETA

Estimated time to arrival.

API

ctor(count[, autoStartOrOptions])

Constructs ETA object for count of iterations. Optionally accepts additional parameter specifying whether time measurement should start immediately (autoStart), or, if it is an object, then it will be treated as options.

Options are:

• autoStart - already described
• numberFormatter - function, which accepts number and returns string

var Eta = require('node-eta');
var eta = new Eta(10);

start()

Starts time measurement.

iterate([anything1, anything2, ...])

Notifies estimator that one more iteration has finished. Optionally supports any number of arguments that will be passed to util.format to produce message, associated with last iteration.

format([anything1, anything2, ...])

Passes arguments to util.format and treats its invocation result as layout where following placeholders can participate:

• {{elapsed}} - elapsed time in seconds
• {{rate}} - current rate (iterations per second)
• {{estimated}} - estimated time (total) in seconds
• {{progress}} - progress (fraction of 1)
• {{eta}} - estimated time to arrival in seconds
• {{etah}} - formatted (for human-readability) eta
• {{last}} - message from last iteration, if any

Returns layout filled with placeholder values.

License

MIT