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Usage: stdlib [options] <command> [args] [-- <options>]
Options:
-h, --help Print this message.
-V, --version Print the version.
Commands:
help [command] Print a help message.
datasets Retrieve a dataset.
repl Start a REPL.
repl-presentation Start a REPL presentation.
Assert:
has-arraybuffer-support Detect ArrayBuffer support.
has-async-await-support Detect async/await support.
has-class-support Detect ES6 class support.
has-float32array-support Detect Float32Array support.
has-float64array-support Detect Float64Array support.
has-function-name-support Detect function name support.
has-generator-support Detect generator support.
has-int16array-support Detect Int16Array support.
has-int32array-support Detect Int32Array support.
has-int8array-support Detect Int8Array support.
has-iterator-symbol-support Detect Symbol.iterator support.
has-map-support Detect Map support.
has-node-buffer-support Detect Node buffer support.
has-proxy-support Detect Proxy support.
has-set-support Detect Set support.
has-sharedarraybuffer-support Detect SharedArrayBuffer support.
has-symbol-support Detect Symbol support.
has-tostringtag-support Detect Symbol.toStringTag support.
has-uint16array-support Detect Uit16Array support.
has-uint32array-support Detect Uit32Array support.
has-uint8array-support Detect Uit8Array support.
has-uint8clampedarray-support Detect Uit8ClampedArray support.
has-wasm-support Detect WebAssembly support.
has-weakmap-support Detect WeakMap support.
has-weakset-support Detect WeakSet support.
is-absolute-path Assert an absolute path.
is-alphagram Assert if a value is an alphagram.
is-alphanumeric Assert if a value is alphanumeric.
is-anagram Assert if a value is an anagram.
is-ascii Assert if a value is ASCII.
is-binary-string Assert if a value is a binary string.
is-capitalized Assert if a value is capitalized.
is-digit-string Assert if a value is a digit string.
is-email-address Assert if a value is an email address.
is-hex-string Assert if a value is a hexadecimal string.
is-leap-year Assert if a leap year.
is-little-endian Assert if little endian.
is-lowercase Assert if a value is lowercase.
is-regexp-string Assert if a value is a regexp string.
is-unc-path Assert a UNC path.
is-uppercase Assert if a value is uppercase.
is-uri Assert if a value is a URI.
is-whitespace Assert if a value is only whitespace.
Benchmarking:
bench Run JavaScript benchmark files.
timeit Time a JavaScript snippet.
Filesystem:
exists Test if a file exists.
read-dir Read all files in a directory.
read-file Read a file.
read-file-list Read a list of files.
rename Rename a file.
resolve-parent-path Resolve a path by walking parent directories.
unlink Remove a file.
write-file Write to file.
Meta:
library-manifest Load a manifest for compiling source files.
ls List stdlib package names.
ls-tree Show stdlib package tree.
node-version Node.js version.
ns Print stdlib namespace.
Plot:
sparkline Plot a sparkline.
Random:
random-arcsine Arcsine distributed pseudorandom numbers.
random-box-muller Box-Muller pseudorandom numbers.
random-improved-ziggurat Improved Ziggurat pseudorandom numbers.
random-minstd Park and Miller LCG pseudorandom numbers.
random-minstd-shuffle Shuffled LCG pseudorandom numbers.
random-mt19937 32-bit Mersenne Twister pseudorandom numbers.
random-randi Pseudorandom numbers having integer values.
random-randn Normally distributed pseudorandom numbers.
random-randu Pseudorandom numbers between 0 and 1.
System:
arch Operating system CPU architecture.
configdir Configuration directory path.
cwd Current working directory.
homedir Home directory path.
num-cpus Number of CPUs.
platform Platform.
tmpdir Directory path for storing temporary files.
umask Process mask.
Time:
day-of-quarter Calculate day of quarter.
day-of-year Calculate day of year.
days-in-month Calculate the number of days in a month.
days-in-year Calculate the number of days in a year.
hours-in-month Calculate the number of hours in a month.
hours-in-year Calculate the number of hours in a year.
iso-weeks-in-year Calculate the number of ISO weeks in a year.
minutes-in-month Calculate the number of minutes in a month.
minutes-in-year Calculate the number of minutes in a year.
now Number of seconds since the epoch.
quarter-of-year Calculate the quarter of a year.
seconds-in-month Calculate the number of seconds in a month.
seconds-in-year Calculate the number of seconds in a year.
Tools:
bundle-pkg-list Bundle a list of stdlib packages.
Utilities:
capitalize Capitalize the first character in a string.
convert-path Convert between Windows and POSIX paths.
ends-with Test if a string ends with another string.
from-code-point Create a string from code points.
js-eval Evaluate a JavaScript string.
lowercase Lowercase a string.
lpad Left pad a string.
ltrim Left trim a string.
open-url Open a URL.
padstr Pad a string.
parallel Execute scripts in parallel.
percent-encode Percent-encode a UTF-16 encoded string.
realmax Maximum representable finite value.
realmin Minimum representable finite value.
remove-first Remove the first character in a string.
remove-last Remove the last character in a string.
remove-punctuation Remove punctuation characters from a string.
remove-utf8-bom Remove a UTF-8 byte order mark (BOM).
remove-words Remove a list of words from a string.
replace Replace search occurrences in a string.
repstr Repeat a string.
reverse Reverse a string.
rpad Right pad a string.
rtrim Right trim a string.
safeintmax Maximum representable safe integer value.
safeintmin Minimum representable safe integer value.
sizeof Size (in bytes) of a numeric data type.
startcase Capitalize each word in a string.
starts-with Test if a string starts with another string.
temp-http-server Create a temporary HTTP server.
trim Trim a string.
typemax Maximum value for a numeric data type.
typemin Minimum value for a numeric data type.
uncapitalize Uncapitalize a string.
uppercase Uppercase a string.
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