haystacklib ~master (2019-10-21T14:33:42Z)

missing

haystack tag

Test if Dict misses property of type T

  1. bool missing(const(Dict) dict, string col)
  2. bool missing(const(Dict) dict, string key)
    bool
    missing
    (
    T
    )
    (
    const(Dict) dict
    ,
    string key
    )
    if (
    Tag.allowed!T
    )

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