Left Sub-String (`left`)

Left substring every item in a list

Description

Takes a list from stdin and returns a left substring of that same list.

One parameter is required and that is the number of characters to return. If the parameter is a negative then left counts from the right.

<stdin> -> left int -> <stdout>

» ja [Monday..Wednesday] -> left 2
[
    "Mo",
    "Tu",
    "We"
]

» ja [Monday..Wednesday] -> left -3
[
    "Mon",
    "Tues",
    "Wednes"
]

Supported data types can queried via runtime

runtime --marshallers
runtime --unmarshallers

Add Prefix (prefix): Prefix a string to every item in a list
Add Suffix (suffix): Prefix a string to every item in a list
Count (count): Count items in a map, list or array
Create JSON Array (ja): A sophisticated yet simply way to build a JSON array
Right Sub-String (right): Right substring every item in a list
Shell Runtime (runtime): Returns runtime information on the internal state of Murex
Stream New List (a): A sophisticated yet simple way to stream an array or list (mkarray)
lang.MarshalData() (system API): Converts structured memory into a Murex data-type (eg for stdio)
lang.UnmarshalData() (system API): Converts a Murex data-type into structured memory