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Dasel
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  • Introduction
  • Installation
    • Update
  • Use as a go package
  • Github
  • Playground
  • Usage
    • Select
    • Put
    • Put object
    • Put document
    • Delete
    • Validate
    • Flags
      • Escape HTML
      • Format
      • Multiple
      • Null
      • Merge Input Documents
    • Supported file types
  • Selectors
    • Introduction
    • Property
    • Keys and indexes
    • Index
    • Next Available Index
    • All indexes
    • Dynamic
    • Search
    • Search Optional
    • Length
    • Type
  • Notes
    • File formatting and ordering
    • Memory usage
    • Converting between formats
  • Examples
    • JQ to Dasel
    • YQ to Dasel
    • XML
    • Filter JSON API results
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  1. Selectors

Length

Description

The length selector can be used to return the length of the current node.

Usage

.[#]

Supported types

The length selector can be used on the following data types:

  • Array/slice

  • Map/object

  • String

Example

$ echo '{"numbers": [5, 2, 3, 1, 4]}' | dasel -p json '.numbers.[#]'
5
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Last updated 2 years ago