| @@ 1957-1973 (lines=17) @@ | ||
| 1954 | * @psalm-return static<TKey,T> |
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| 1955 | * @psalm-mutation-free |
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| 1956 | */ |
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| 1957 | public function firstsImmutable(int $number = null): self |
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| 1958 | { |
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| 1959 | $arrayTmp = $this->getArray(); |
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| 1960 | ||
| 1961 | if ($number === null) { |
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| 1962 | $array = (array) \array_shift($arrayTmp); |
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| 1963 | } else { |
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| 1964 | $number = (int) $number; |
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| 1965 | $array = \array_splice($arrayTmp, 0, $number); |
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| 1966 | } |
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| 1967 | ||
| 1968 | return static::create( |
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| 1969 | $array, |
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| 1970 | $this->iteratorClass, |
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| 1971 | false |
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| 1972 | ); |
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| 1973 | } |
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| 1974 | ||
| 1975 | /** |
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| 1976 | * Get the first value(s) from the current array. |
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| @@ 1987-2003 (lines=17) @@ | ||
| 1984 | * @psalm-return static<TKey,T> |
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| 1985 | * @psalm-mutation-free |
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| 1986 | */ |
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| 1987 | public function firstsKeys(int $number = null): self |
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| 1988 | { |
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| 1989 | $arrayTmp = $this->keys()->getArray(); |
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| 1990 | ||
| 1991 | if ($number === null) { |
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| 1992 | $array = (array) \array_shift($arrayTmp); |
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| 1993 | } else { |
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| 1994 | $number = (int) $number; |
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| 1995 | $array = \array_splice($arrayTmp, 0, $number); |
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| 1996 | } |
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| 1997 | ||
| 1998 | return static::create( |
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| 1999 | $array, |
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| 2000 | $this->iteratorClass, |
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| 2001 | false |
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| 2002 | ); |
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| 2003 | } |
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| 2004 | ||
| 2005 | /** |
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| 2006 | * Get and rmove the first value(s) from the current array. |
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