Package Exports
- svelte-jsoneditor
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Readme
svelte-jsoneditor
A web-based tool to view, edit, format, transform, and validate JSON
The library is written with Svelte, but can be used in any framework (React, Angular, plain JavaScript).

Install
npm installUse
See the /examples section for some full examples.
Svelte
Create a JSONEditor with two-way binding bind:json:
<script>
import { JSONEditor } from 'svelte-jsoneditor'
let json = {
'array': [1, 2, 3],
'boolean': true,
'color': '#82b92c',
'null': null,
'number': 123,
'object': {'a': 'b', 'c': 'd'},
'string': 'Hello World'
}
</script>
<div>
<JSONEditor bind:json />
</div>Or one-way binding:
<script>
import { JSONEditor } from 'svelte-jsoneditor'
let json = {
text: 'Hello World'
}
function onChange(content) {
// content is an object { json: JSON | undefined, text: string | undefined }
console.log('onChange: ', content)
json = content.json
}
</script>
<div>
<JSONEditor
json={json}
onChange={onChange}
/>
</div>Browser
Load as ES module:
<!DOCTYPE html>
<html lang="en">
<head>
<title>JSONEditor</title>
</head>
<body>
<div id="jsoneditor"></div>
<script type="module">
import { JSONEditor } from 'svelte-jsoneditor/dist/jsoneditor.mjs'
const editor = new JSONEditor({
target: document.getElementById('jsoneditor'),
props: {
json: {
greeting: 'Hello World'
},
onChange: (content) => {
// content is an object { json: JSON | undefined, text: string | undefined }
console.log('onChange', content)
}
}
})
</script>
</body>
</html>Or using UMD (exposed as window.jsoneditor.JSONEditor):
<!DOCTYPE html>
<html lang="en">
<head>
<title>JSONEditor</title>
<script src="svelte-jsoneditor/dist/jsoneditor.js"></script>
</head>
<body>
<div id="jsoneditor"></div>
<script>
const editor = new JSONEditor({
target: document.getElementById('jsoneditor'),
props: {
json: {
greeting: 'Hello World'
},
onChange: (content) => {
// content is an object { json: JSON | undefined, text: string | undefined }
console.log('onChange', content)
}
}
})
</script>
</body>
</html>API
constructor
Svelte component:
<script>
import { JSONEditor } from 'svelte-jsoneditor'
</script>
<div>
<JSONEditor json={json} />
</div>JavasScript class:
import { JSONEditor } from 'svelte-jsoneditor'
const editor = new JSONEditor({
target: document.getElementById('jsoneditor'),
props: {
json,
onChange: (content) => {
// content is an object { json: JSON | undefined, text: string | undefined }
console.log('onChange', content)
}
}
})properties
jsonPass the JSON document to be rendered in the JSONEditormode: 'edit' | 'view'Open the editor in editable mode ('edit') or readonly ('view'). Default is'edit'mainMenuBar: booleanShow the main menu bar. Default value istrue.validator: function (json): ValidationError[]. Validate the JSON document. For example use the built-in JSON Schema validator powered by Ajv:import { createAjvValidator } from 'svelte-jsoneditor' const validator = createAjvValidator(schema, schemaRefs)
onChange({ json: JSON | undefined, text: string | undefined}). Callback which is invoked on every change made in the JSON document.onClassName(path: Array.<string|number>, value: any): string | undefined. Add a custom class name to specific nodes, based on their path and/or value.onFocus()callback fired when the editor got focus.onBlur()callback fired when the editor lost focus.
methods
get(): JSONGet the current JSON document. Will throw an error when the editor is in Repair mode and does not contain valid JSON.getText(): stringGet the current JSON document as stringified JSON.set(json: JSON)Replace the current JSON document. Will reset the state of the editor.setText(text: string)Replace the current JSON document, passing stringified JSON contents. When the text cannot be parsed as JSON, the editor will go into Repair mode.update(json: JSON)Update the loaded JSON document, keeping the state of the editor (like expanded objects).updateText(text: JSON)Update the loaded JSON document, keeping the state of the editor (like expanded objects). When the passed text cannot be parsed as JSON, the editor will go into Repair mode.patch(operations: JSONPatchDocument)Apply a JSON patch document to update the contents of the JSON document.scrollTo(path: Array.<string|number>)Scroll the editor vertically such that the specified path comes into view. The path will be expanded when needed.focus(). Give the editor focus.destroy(). Destroy the editor, remove it from the DOM.
Develop
Clone the git repository
Install dependencies:
npm installStart watcher:
npm startBuild the library:
npm run buildRun unit tests:
npm testRun linter:
npm run lintLicense
Released under the ISC license.