cockpit.js: Utilitiescockpit.js: Utilities — Various utility functions |
cockpit.format()
string = cockpit.format(template, args) string = cockpit.format(template, [arg, ...])
Format a string interpolating args
into template
using
shell like syntax. The args
may be either an array or javascript object.
The template
can contain fields that look like $name
or
${name}
or $0
. Numeric fields are used with array
args
and start at zero.
In the second form, multiple arg
arguments may be passed directly,
and interpolated as as numeric fields in the template
.
All falsy arguments except the numbers 0
and 0.0
are
replaced by an empty string.
cockpit.format_number()
string = cockpit.format_number(number, [precision])
Formats number
into a displayable string
. If the number is not
an integer, it is rounded to the given number of decimal places, defaulting to 3. If the number
is near zero, but not quite zero it is rounded to the smallest non-zero value of the given precision;
i.e. ±0.001 for default precision 3.
If number
is null
or undefined
an empty string
will be returned.
cockpit.format_bytes()
string = cockpit.format_bytes(number, [options])
Formats number
into a displayable string
with a suffix, such as
kB or MB.
By default, SI units are used. IEC units (1024-based) can be requested by including
base2: true
in options
.
By default, non-integer numbers will be formatted with 3 digits of precision. This can be changed
with options.precision
.
If number
is null
or undefined
an empty string will be
returned.
cockpit.format_bytes_per_sec()
string = cockpit.format_bytes_per_sec(number, [options])
Format number
of bytes into a displayable speed string
.
This function is mostly equivalent to cockpit.format_bytes()
but the returned
value contains a unit like kB/s or MB/s.
cockpit.format_bits_per_sec()
string = cockpit.format_bits_per_sec(number, [options])
Format number
of bits into a displayable speed string
.
This function is mostly equivalent to cockpit.format_bytes()
but the returned
value contains a unit like kbps or Mbps.
This function does not support IEC units. base2
may not be passed as part of
options
.
cockpit.info
cockpit.info["version"] cockpit.info["build"]
This object contains information about cockpit itself. Note that when cockpit is running on multiple servers, this only reflects the server that was connected to. The following fields are defined:
|
A string containing build details. |
|
A string containing the cockpit version number. It is almost always incorrect to use this to make a decision in code. |
cockpit.event_target
cockpit.event_target(object, [handlers])
Adds an
EventTarget
implementation to the object
. Optionally store the handlers in handlers
if its specified.