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278 packages found
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ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
- primitive
- abstract
- ecmascript
- es5
- es6
- es2015
- toPrimitive
- coerce
- type
- object
- string
- number
- boolean
- symbol
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Undefined safe way of extracting object properties
Coalesce for JavaScript. Returns the first value that is not undefined or null.
return the first argument that is `!== undefined`
Safe Window Getters
A library to have a generic typescript definition for object presence.
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
- array
- assert
- assertion
- async
- async function
- async-function
- asyncFunction
- bool
- boolean
- browser
- check
- check-type
- checking
- class
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Simple function that return the first non null or undefined argument
Checks if the given value is null or undefined
Returns true if the given is falsey (according to JavaScript) or matches a 'falsey' keyword.
Check if a value is undefined or not.
A simple module that works exactly as Object.assign, but skips assigning undefined values.
TypeScript recursive conversion between optional (partial) and undefined properties.
A small safe accessor that uses reduce to prevent 'Cannot read property of undefined' errors
returns a copy of an array or object with null/undefined members removed
Validates if a value is undefined or null.
Nullish checker
Validates if a value is undefined.
Safe Window Getters
Next JavaScript Object Notation