encode and decode for base64 encoding.

Utilities for working with Deno's readers, writers, and web streams.

Utilities for working with OS-specific file paths.

A variable-sized buffer of bytes with read() and write() methods.

A variable-sized buffer of bytes with read() and write() methods.

BufWriter implements buffering for an deno.Writer object. If an error occurs writing to a Writer, no more data will be accepted and all subsequent writes, and flush(), will return the error. After all data has been written, the client should call the flush() method to guarantee all data has been forwarded to the underlying deno.Writer.

BufWriterSync implements buffering for a deno.WriterSync object. If an error occurs writing to a WriterSync, no more data will be accepted and all subsequent writes, and flush(), will return the error. After all data has been written, the client should call the flush() method to guarantee all data has been forwarded to the underlying deno.WriterSync.

Reader utility for combining multiple readers

Reader utility for strings.

Writer utility for buffering string chunks.

Make an assertion, error will be thrown if expr does not have truthy value.

Make an assertion that actual and expected are almost equal numbers through a given tolerance. It can be used to take into account IEEE-754 double-precision floating-point representation limitations. If the values are not almost equal then throw.

Make an assertion that actual includes the expected values. If not then an error will be thrown.

Make an assertion that actual and expected are equal, deeply. If not deeply equal, then throw.

Make an assertion that actual is not null or undefined. If not then throw.

Make an assertion that obj is an instance of type. If not then throw.

Make an assertion that error is an Error. If not then an error will be thrown. An error class and a string that should be included in the error message can also be asserted.

Make an assertion that actual match RegExp expected. If not then throw.

Make an assertion that actual and expected are not equal, deeply. If not then throw.

Make an assertion that obj is not an instance of type. If so, then throw.

Make an assertion that actual not match RegExp expected. If match then throw.

Make an assertion that actual and expected are not strictly equal. If the values are strictly equal then throw.

Make an assertion that actual object is a subset of expected object, deeply. If not, then throw.

Executes a function which returns a promise, expecting it to reject.

Make an assertion that actual and expected are strictly equal. If not then throw.

Make an assertion that actual includes expected. If not then throw.

Executes a function, expecting it to throw. If it does not, then it throws.

Decodes a given RFC4648 base64 encoded string

CREDIT: https://gist.github.com/enepomnyaschih/72c423f727d395eeaa09697058238727 Encodes a given Uint8Array, ArrayBuffer or string into RFC4648 base64 representation

Copies from src to dst until either EOF (null) is read from src or an error occurs. It resolves to the number of bytes copied or rejects with the first error encountered while copying.

Deep equality comparison used in assertions

Forcefully throws a failed assertion

Copy N size at the most. If read size is lesser than N, then returns nread

Read delimited bytes from a Reader.

Read big endian 32bit integer from BufReader

Read strings line-by-line from a Reader.

Read big endian 64bit long from BufReader

Read a range of bytes from a file or other resource that is readable and seekable. The range start and end are inclusive of the bytes within that range.

Read a range of bytes synchronously from a file or other resource that is readable and seekable. The range start and end are inclusive of the bytes within that range.

Read big endian 16bit short from BufReader

Read Reader chunk by chunk, splitting based on delimiter.

Slice number into 64bit big endian byte array

Determines the common path from a set of paths, using an optional separator, which defaults to the OS default separator.

Convert a glob string to a regular expression.

Test whether the given string is a glob

Like join(), but doesn't collapse "**/.." when globstar is true.

Like normalize(), but doesn't collapse "**/.." when globstar is true.

Read Reader r until EOF (null) and resolve to the content as Uint8Array`.

Use this to stub out methods that will throw when invoked.

Use this to assert unreachable code.

Result type returned by of BufReader.readLine().

A parsed path object generated by path.parse() or consumed by path.format().