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array-keep-first
Creates a new array containing only the first `length` elements.
Parameter
Type
Description
self
[T]
Initial array
length
Number
Number of elements to keep from the start
return
[T]
New array with first `length` elements
 Test Case:Keep first 2 elements 
    <div></div>

    <array-new type="string">
<array-append value="a">
<array-append value="b">
<array-append value="c">
<array-keep-first length="2">
<array-join separator=",">
<assert-equal value="a,b" type="string">
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