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hacklang array count size length

Elated Earthworm answered on July 27, 2022 Popularity 1/10 Helpfulness 1/10

answer hacklang array count size length

hacklang array count size length

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//namespace HH\Lib\C; <---- add this
// The C namespace contains generic functions that are relevant to
// all array and collection types.
C\count(vec[]); // 0
C\is_empty(keyset[]); // true

// The Vec, Keyset and Dict namespaces group functions according
// to their return type.
Vec\keys(dict['x' => 1]); // vec['x']
Keyset\keys(dict['x' => 1]); // keyset['x']

Vec\map(keyset[1, 2], $x ==> $x + 1); // vec[2, 3]

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: docs.hhvm.com

Tags: count hacklang size whatever

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Contributed on Jul 27 2022

Elated Earthworm

0 Answers Avg Quality 2/10

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