React18 JSON View

React function component for displaying javascript arrays and JSON objects. Supports all JS types.

Website, Storybook,Online

Installation

npm i react18-json-view

npm i react18-json-view@canary

Usage

import JsonView from 'react18-json-view'
import 'react18-json-view/src/style.css'
// If dark mode is needed, import `dark.css`.
// import 'react18-json-view/src/dark.css'

<JsonView src={my_json_object} />

// If needed, you can use the internal stringify function.
// import { stringify } from 'react18-json-view'

Props

Name	Type	Default	Description
src	JSON Object	None	This property contains your input JSON
className	string	None	The CSS class name(s) to apply to the component.
style	JSON Object	None	An object containing custom style rules to apply to the component.
dark	boolean	false	Keep in dark mode (Don't forget to import dark.css)
theme	default | a11y | github | vscode | atom|winter-is-coming	'default'	Color theme
enableClipboard	boolean	true	Whether enable clipboard feature.
matchesURL	boolean	true	Show the link icon if value is string and matches URL regex pattern.
urlRegExp	RegExp	/^(((ht|f)tps?):\/\/)?([^!@#$%^&*?.\s-]([^!@#$%^&*?.\s]{0,63}[^!@#$%^&*?.\s])?\.)+[a-z]{2,6}\/?/	URL RegExp pattern.
displaySize	boolean | integer | 'collapsed' | 'expanded'	false	Whether display the size of Object, Array.
displayArrayIndex (canary)	boolean	true	Whether display the index of Array.
collapseStringsAfterLength	integer	99	When an integer value is assigned, strings longer than that length will be truncated and indicated by an ellipsis. To expand or collapse the string content, simply click on the string value.
customizeCollapseStringUI	(str_show: string, truncated: boolean) => (JSX.Element | string) | string	-	Customize the collapse string UI.
ignoreLargeArray	boolean	false	Prevent collapsing large array(length > 100) behavior since v0.2.7
collapseStringMode	'directly' | 'word' | 'address'	'directly'	If the word is assigned, the collapsed length will be adjusted to fully display the last word.
collapsed	boolean | integer | function	false	When set to true(false), all nodes will be (not) collapsed by default. When using an integer value, it will collapse at a specific depth. The collapsed also can be a function.
onCollapse	function	-	(params: { isCollapsing: boolean, node: Record<string, any> | Array<any>, indexOrName: string | number | undefined, depth: number }) => void
collapseObjectsAfterLength	integer	99	When an integer value is assigned, the object and array will initially collapse.
editable	boolean | {add?: boolean, edit?: boolean, delete?: boolean}	false	When set to true, you can add, edit, or delete the property, and the actions will trigger onAdd, onEdit, or onDelete. Options is available.
onAdd	function	-	(params: { indexOrName: string| number, depth: number, src: any; parentType: 'object' | 'array' }) => void
onDelete	function	-	(params:{ value: any,indexOrName: string | number,depth: number,src: any,parentType: 'object' | 'array'}) => void
onEdit	function	-	(params: { newValue: any, oldValue: any, depth: number, src: any, indexOrName: string | number, parentType: 'object' | 'array'}) => void
customizeNode	ReactElement|ReactComponent|Options	-	Highly customize every node.
customizeCopy	(node: any) => any	internal stringify	Customize copy behavior, only the returned non-empty string will be written to clipboard.
CopyComponent / DoneComponent / CancelComponent (canary)	React.FC / React.Component <{ onClick: (event: React.MouseEvent) => void; className: string ; style: React.CSSProperties}>	-	Customize copy icon.
CopiedComponent (canary)	React.FC / React.Component <{ className: string; style: React.CSSProperties }>	-	Customize copied icon.
CustomOperation (canary)	React.FC / React.Component <{ node: any }>	-	Custom Operation

Collapsed function

(params: {
    node: Record<string, any> | Array<any> // Object or array
    indexOrName: number | string | undefined
    depth: number
    size: number // Object's size or array's length
  }) => boolean

Editable options

{
  add?: boolean
  edit?: boolean
  delete?: boolean
}

canary: onEdit, OnDelete, onAdd and OnChange add parentPath field, allow us to correctly indicate which field in the JSON is being edited.

CustomizeNode

(params: { node: any; indexOrName: number | string | undefined; depth: number }) =>
  | {
    add?: boolean
    edit?: boolean
    delete?: boolean
    enableClipboard?: boolean
    collapsed?: boolean
    className?: string
  }
  | React.FC
  | typeof React.Component
  | React.ReactElement<any, any>

Editable

How to generate object/array

The editor uses eval(<input-value>). While in edit mode, you can enter ({}) or ([]), which will cause the result of eval to become a new object or array.

{} and [] will be auto convert to ({}),([])

canary: eval => JSON.parse

How the editor works

This component does not perform any cloning operations, so every step of the operation is carried out on the original object. If cloning is required, please handle it yourself.

Edit keyboard shortcuts

When element is editable:

• Ctrl/Cmd+Click => Edit Mode
• Enter => Submit
• Esc => Cancel

Custom themes

Below are the default theme variables that you can easily customize to fit your needs.

.json-view {
  color: #4d4d4d;
  --json-property: #009033;
  --json-index: #676dff;
  --json-number: #676dff;
  --json-string: #b2762e;
  --json-boolean: #dc155e;
  --json-null: #dc155e;
}
.json-view .json-view--property { color: var(--json-property); }
.json-view .json-view--index { color: var(--json-index); }
.json-view .json-view--number { color: var(--json-number); }
.json-view .json-view--string { color: var(--json-string); }
.json-view .json-view--boolean { color: var(--json-boolean); }
.json-view .json-view--null { color: var(--json-null); }

Why

react-json-view does not support React 18.

Todo

• copy (enableClipboard)
• css
• collapse at a particular depth (collapsed)
• editable
  • add
  • edit
  • delete
  • onChange
  • onSelect
• dark mode
• custom icon
  • export default icons
• more usability/scenarios
• gif guide
• more color themes(dark)
• collapse objects callback
• editable option
• advance customization
  • access internal actions
• map/set viewer
• display data type
• display object size
• handle circle loop
• redesign docs
• truncate long strings
• custom stringify
• split large array

• tree?