Definition

string join_hide(string $separator, array[string] $stringsarray)

Joins strings from $stringsarray with $separator in between them, ignoring null and whitespace.

Parameters

string $separator

Separator to use between elements of $stringsarray.

array[string] $stringsarray

Array of strings to be joined.

Returns

string

Single string consisting of all non-null, non-whitespace elements from $stringsarray with $separator in between them.

Examples

{
  a: join_hide(', ', ['dragon', 'fruit']),	
  b: join_hide('', ['dragon', 'fruit']),
  c: join_hide('', ['dragon', ' ', `null`, 'fruit']),	
  d: join_hide(', ', [`1.0`, `false`]),
  e: join_hide(', ', [`1.1`]),
  f: join_hide(' - ', [`null`]),
  g: join_hide(', ', `[]`),
  h: join_hide(', ', `{dragon: 'fruit'}`)	
}

{
  "a": "dragon, fruit",
  "b": "dragonfruit",
  "c": "dragonfruit",
  "d": "1, False",
  "e": "1.1",
  "f": "",
  "g": "",
  "h": ""
}

Remarks

This function acts identically to join, except that it ignores null and whitespace array elements.