A lightweight stream-like maybe/or else monad for typescript. `maybe(val).valueOr(other)` grant you no unexpected undefined and hence allows you to write you TS-code in a more fluid way, skipping some of those if-else nestings.
Object.assign that skips any undefined properties from source objects
Simple utility function for checking isDefined for complex objects with long property paths
LoDash Mixins from Decipher, Inc.
simple function to check if given object is defined and not null, or return optional parameter if its not
A very limited subset of object functions I use every day
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Check does the given Javascript Object is a defined.
Safe chaining of object properties and functions using ES2015 Proxy.
Check if value is defined
A minimalistic boilerplate to wait for Custom Elements, or libraries, definition
Clone of PHP's function 'defined'
A logic Utility. Nil is: null or undefined. Make writing node easier, prettier and less error prone. Writes and reads more like prose
Returns whether or not the passed arguments are defined - ie. not undefined
check if javascript properties are defined (with typescript support)
Basic rana router.
A robust micro library for type checking. Defers to constructs' internal `[[Class]]` property rather than duck typing for excellent type detection and to avoid triggering false positives.
2 functions that check if argument is undefined or null
Object.assign that skips any undefined properties from source objects
Check if an identifier is defined