Javascript ABCI example application
Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.
CLI arguments parser. Native port of python's argparse.
Determine if the JS environment has Symbol support. Supports spec, or shams.
Is this specifier a node.js core module?
Returns an array of Typed Array names that are available in the current environment
Determine if a function is a native generator function.
Is this value a JS FinalizationRegistry? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Gets the description of a Symbol. Handles `Symbol()` vs `Symbol('')` properly when possible.
Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag
Determine if the current node version supports the `--preserve-symlinks` flag.
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Allows users to use generators in order to write common functions that can be both sync or async.
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.
Is this value a JS Number object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
parse argument options
Determine if the JS environment has BigInt support.
Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value negative zero? === will lie to you
Determine if a function is a native async function.
Tendermint ABCI server