Javascript JPath

Javascript JPath as specified in RFC 6901.

Notes:

• Path items separator is slash (/) character
• Path may not start with slash (/) character
• Escape char is tilde (~). The following characters MUST be escaped in path item names:
  • Tilde (~): ~0
  • Slash (/): ~1

Constructor

• new JPath(str)
  

Create a new JPath object.
Parameters:
str: String with JSON path

Methods

• valid()

Check if path is valid.
Return:
True if path is valid, false otherwise

• getItems()

Retrieve path item(s).
Return:
Array of strings. Each item contains its unescaped value. Array may be empty for empty or invalid paths

• count()

Retrieve the number of items in path.
Return:
Number of items in path, 0 if path is empty or invalid

• at(idx)

Retrieve the path item at given index.
Parameters:
idx: 0 based index to retrieve
Return:
Path item string (unescaped, may be empty), 'undefined' if index is out of range. Index may be out of range for empty or invalid paths.