| @@ 1806-1822 (lines=17) @@ | ||
| 1803 | * @return static |
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| 1804 | * <p>(Immutable)</p> |
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| 1805 | */ |
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| 1806 | public function firstsImmutable(int $number = null): self |
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| 1807 | { |
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| 1808 | $arrayTmp = $this->getArray(); |
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| 1809 | ||
| 1810 | if ($number === null) { |
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| 1811 | $array = (array) \array_shift($arrayTmp); |
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| 1812 | } else { |
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| 1813 | $number = (int) $number; |
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| 1814 | $array = \array_splice($arrayTmp, 0, $number); |
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| 1815 | } |
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| 1816 | ||
| 1817 | return static::create( |
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| 1818 | $array, |
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| 1819 | $this->iteratorClass, |
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| 1820 | false |
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| 1821 | ); |
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| 1822 | } |
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| 1823 | ||
| 1824 | /** |
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| 1825 | * Get the first value(s) from the current array. |
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| @@ 1833-1849 (lines=17) @@ | ||
| 1830 | * @return static |
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| 1831 | * <p>(Immutable)</p> |
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| 1832 | */ |
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| 1833 | public function firstsKeys(int $number = null): self |
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| 1834 | { |
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| 1835 | $arrayTmp = $this->keys()->getArray(); |
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| 1836 | ||
| 1837 | if ($number === null) { |
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| 1838 | $array = (array) \array_shift($arrayTmp); |
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| 1839 | } else { |
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| 1840 | $number = (int) $number; |
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| 1841 | $array = \array_splice($arrayTmp, 0, $number); |
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| 1842 | } |
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| 1843 | ||
| 1844 | return static::create( |
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| 1845 | $array, |
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| 1846 | $this->iteratorClass, |
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| 1847 | false |
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| 1848 | ); |
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| 1849 | } |
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| 1850 | ||
| 1851 | /** |
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| 1852 | * Get and rmove the first value(s) from the current array. |
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