115 packages found
Test if a value is an array-like object.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- array
- array-like
- is
- isarraylike
- object
- obj
- View more
Return the first index at which a given element can be found.
Test if a value is an array-like object of numbers.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- array
- array-like
- is
- number
- numeric
- isnumber
- View more
Return a function which tests if every element in an array-like object passes a test condition.
Test if an array-like value contains a search value.
Add one or more elements to the beginning of a collection.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- unshift
- append
- extend
- lengthen
- array
- typed array
- typed-array
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Test if a value is an arguments object.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- arguments
- args
- isarguments
- array-like
- object
- obj
- View more
Test if a value is array-like.
Test if a value is an array-like object containing only functions.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- function
- array
- is
- isfunction
- isarray
- array-like
- View more
Test if a value is an array-like object containing only symbols.
Group values as arrays associated with distinct keys.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- group
- groupby
- group-by
- aggregate
- summarize
- partition
- split
- View more
Generate a frequency table.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- tabulate
- table
- frequency
- frequencies
- aggregate
- partition
- summarize
- View more
Group values according to an indicator function and return group counts.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- group
- groupby
- group-by
- count
- count-by
- aggregate
- partition
- View more
Test whether a collection contains at least `n` elements which are truthy.
Until a test condition is true, invoke a function for each element in a collection.
Invoke a function for each element in a collection.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- for
- each
- foreach
- array.foreach
- iterate
- collection
- array-like
- View more
Test whether all elements in a collection are falsy.
Test if a value is an array-like object where every element is between two values.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- comparison
- compare
- order
- interval
- closed
- open
- View more
Convert a collection to an object whose keys are determined by a provided function and whose values are the collection values, iterating from right to left.
While a test condition is true, invoke a function for each element in a collection.