- 前言
- Lazy
- createWrapper
- generate
- range
- repeat
- strict
- Sequence
- define
- async
- chunk
- compact
- concat
- consecutive
- contains
- countBy
- dropWhile
- each
- equals
- every
- filter
- find
- findWhere
- first
- flatten
- get
- getIterator
- groupBy
- indexBy
- indexOf
- initial
- intersection
- invoke
- isEmpty
- join
- last
- lastIndexOf
- map
- max
- memoize
- min
- none
- ofType
- pluck
- reduce
- reduceRight
- reject
- rest
- reverse
- shuffle
- size
- some
- sort
- sortBy
- sortedIndex
- sum
- takeWhile
- tap
- toArray
- toObject
- union
- uniq
- where
- without
- zip
- ArrayLikeSequence
- define
- concat
- first
- get
- length
- map
- pop
- push
- rest
- reverse
- shift
- slice
- unshift
- ObjectLikeSequence
- define
- assign
- async
- defaults
- functions
- get
- invert
- keys
- merge
- omit
- pairs
- pick
- toArray
- toObject
- values
- watch
- StringLikeSequence
- define
- charAt
- charCodeAt
- contains
- endsWith
- first
- indexOf
- last
- lastIndexOf
- mapString
- match
- reverse
- split
- startsWith
- substring
- toLowerCase
- toUpperCase
- GeneratedSequence
- each
- length
- AsyncSequence
- contains
- each
- find
- getIterator
- indexOf
- Iterator
- current
- moveNext
- AsyncHandle
- cancel
- onComplete
- onError
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initial
Creates a new sequence comprising all but the last N elements of this sequence.
Signature
Sequence.initial = function(count) { /*...*/ }
Sequence.initial = function initial(count) { return new InitialSequence(this, count); }
Name | Type(s) | Description |
---|---|---|
count | number? | The number of items to omit from the end of the sequence (defaults to 1). |
returns | Sequence | The new sequence. |
Examples
Lazy([1, 2, 3, 4]).initial() // sequence: [1, 2, 3] Lazy([1, 2, 3, 4]).initial(2) // sequence: [1, 2] Lazy([1, 2, 3]).filter(Lazy.identity).initial() // sequence: [1, 2]
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