client
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client.isUndefined

Check if value is undefined

browsernot registered
Package
@procedures/client · README
Path
["client","isUndefined"]
CLI
Not a mark command: it is not in the default registry.
As data
{"$proc":["client","isUndefined"],"input":{}}
Tags
core, type

Try it in the Composer →

Use it

In TypeScript

import { Client, LocalTransport, PROCEDURE_REGISTRY, allCoreProcedures } from "@procedures/client";

for (const procedure of allCoreProcedures) {
  if (!PROCEDURE_REGISTRY.has(procedure.path)) PROCEDURE_REGISTRY.register(procedure);
}

const client = new Client(new LocalTransport({ registry: PROCEDURE_REGISTRY }));
const result = await client.exec(["client","isUndefined"], {});
console.log(JSON.stringify(result));

As data, in a program

{ "$proc": ["client", "isUndefined"], "input": {} }

Input

FieldTypeRequired
valueunknownno

Output

The schema does not list fields (boolean).

JSON Schemas
{
  "input": {
    "type": "object",
    "properties": {
      "value": {
        "description": "The value"
      }
    }
  },
  "output": {
    "type": "boolean",
    "description": "True for undefined"
  }
}