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68 bytes added ,  17:40, 17 February 2020
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| '''Examples'''
|The following query returns the array {{Code|[0, 1, 3]}}:
<pre classsyntaxhighlight lang="brush:xquery">
array:filter(
array { 0, 1, -2, 3, -4 },
function($i) { $i > 0 }
)
</presyntaxhighlight>
|}
| '''Examples'''
|The following query returns {{Code|55}} (the sum of the integers 1 to 10):
<pre classsyntaxhighlight lang="brush:xquery">
array:fold-left(
array { 1 to 10 },
function($a, $b) { $a + $b }
)
</presyntaxhighlight>
|}
| '''Examples'''
|The following query is equivalent to the expression <code>array:reverse(array { 1 to 5 })</code>:
<pre classsyntaxhighlight lang="brush:xquery">
array {
array:fold-right(
)
}
</presyntaxhighlight>
|}
| '''Examples'''
|The following query returns the array {{Code|[5, 7, 9]}}:
<pre classsyntaxhighlight lang="brush:xquery">
array:for-each-pair(
array { 1 to 3 },
function($a + $b) { $a + $b }
)
</presyntaxhighlight>
|}
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