$$indexof

Finds the index of the first occurrence of the specified substring with optional from index (returns -1 if not found)

Usage

{ 
  "$$indexof": /* The string to search in */,
  "substring": /* string */,
  "from": /* integer */
}

"$$indexof(<substring>,[from]):{input}"

Returns

number

Arguments

Argument	Type	Values	Required / Default Value	Description
Input	string		Yes	The string to search in
substring	string		Yes	The substring to look for
from	integer		null	From which index to look for

Examples

Input

Definition

Output

"ABC"

{
  "$$indexof": "$",
  "substring": "BC"
}

1

Test

"ABCABC"

{
  "$$indexof": "$",
  "substring": "B",
  "from": 2
}

4

Test

"ABC"

{
  "$$indexof": "$",
  "substring": "D"
}

-1

Test

"ABC"

"$$indexof(BC):$"

1

Test

"ABC"

"$$indexof(D):$"

-1

Test