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Test whether a collection contains at least `n` elements which pass a test implemented by a predicate function.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- test
- predicate
- any
- every
- all
- array.some
- array.every
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Test whether at least one element in a collection passes a test implemented by a predicate function.
Test if a value is an empty collection.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- array
- typed array
- collection
- float64array
- float32array
- int32array
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While a test condition is true, invoke a function for each element in a collection.
Convert a collection to an object whose keys are determined by a provided function and whose values are the collection values.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- key
- object
- obj
- convert
- transform
- iterate
- collection
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Until a test condition is true, invoke a function for each element in a collection.
Test whether a collection contains at least `n` elements which are truthy.
Test whether all elements in a collection fail a test implemented by a predicate function, iterating from right to left.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- test
- predicate
- none
- noneright
- every
- all
- array.every
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Test whether a collection contains at least `n` elements which pass a test implemented by a predicate function, iterating from right to left.
Test whether all elements in a collection are falsy.
Test whether all elements in a collection are truthy.
Until a test condition is true, invoke a function for each element in a collection, iterating from right to left.
Until a test condition is true, invoke a function for each element in a collection.
Test whether at least one element in a collection is truthy.
While a test condition is true, invoke a function for each element in a collection.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- for
- while
- each
- foreach
- iterate
- collection
- array-like
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Test whether an object contains at least n properties (own and inherited) which pass a test implemented by a predicate function.
- stdlib
- stdutils
- stdutil
- utilities
- utility
- utils
- util
- test
- predicate
- any
- every
- all
- object.some
- object.every
- View more
Return a new array with the element at the specified index replaced with a provided value.
Universal ES6-compatible WeakMap wrapper
Node.js cross-platform native collection library