payload-is/lib/commonjs/dataType.cjs

A comprehensive TypeScript/JavaScript type checking library providing functions to check data types, collections, primitives, and built-in objects

'use strict';

var type = require('./type.cjs');

const FunctionTag = [
  "Function",
  "AsyncFunction",
  "GeneratorFunction",
  "AsyncGeneratorFunction"
];
function toFunctionTag(data) {
  const tag = type.getTag(data);
  return FunctionTag.includes(tag) ? tag : "Function";
}
const ObjectTag = [
  // iterator
  "Segmenter String Iterator",
  "RegExp String Iterator",
  "String Iterator",
  "Array Iterator",
  "Map Iterator",
  "Set Iterator",
  "Generator",
  "Iterator",
  "AsyncGenerator",
  "AsyncIterator",
  // buffer
  "ArrayBuffer",
  "SharedArrayBuffer",
  "DataView",
  "Int8Array",
  "Uint8Array",
  "Int16Array",
  "Uint16Array",
  "Int32Array",
  "Uint32Array",
  "Float32Array",
  "Float64Array",
  "BigInt64Array",
  "BigUint64Array",
  // object
  "String",
  "Number",
  "BigInt",
  "Boolean",
  "Symbol",
  "Error",
  "Array",
  "Set",
  "Map",
  "WeakSet",
  "WeakMap",
  "WeakRef",
  "Promise",
  "Date",
  "RegExp",
  "URL",
  "URLSearchParams",
  "File",
  "Blob",
  "FormData",
  "Headers",
  "Request",
  "Response",
  "Arguments",
  "Atomics",
  "JSON",
  "Reflect",
  "Object"
];
function toObjectTag(data) {
  const tag = type.getTag(data);
  return ObjectTag.includes(tag) ? tag : "Object";
}
function getDataType(data) {
  switch (typeof data) {
    case "undefined":
      return { type: "undefined", data };
    case "number":
      return { type: "number", data };
    case "bigint":
      return { type: "bigint", data };
    case "boolean":
      return { type: "boolean", data };
    case "string":
      return { type: "string", data };
    case "symbol":
      return { type: "symbol", data };
    case "function":
      return { type: "function", subtype: toFunctionTag(data), data };
    case "object":
      if (data === null) {
        return { type: "null", data };
      }
      return { type: "object", subtype: toObjectTag(data), data };
  }
}

exports.getDataType = getDataType;
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