typedash/dist/pick/index.cjs

modern, type-safe collection of utility functions

'use strict';

// src/functions/isArray/isArray.ts
var isArray = Array.isArray;

// src/functions/castArrayIfDefined/castArrayIfDefined.ts
function castArrayIfDefined(value) {
  if (value == null) {
    return value;
  }
  if (isArray(value)) {
    return value;
  }
  return [value];
}

// src/functions/castArray/castArray.ts
function castArray(value) {
  return castArrayIfDefined(value ?? []);
}

// src/functions/createTypeGuard/createTypeGuard.ts
function createTypeGuard(values) {
  const setValues = new Set(values);
  return function predicate(v) {
    return setValues.has(v);
  };
}

// src/functions/_internal/filterObject/createObjectPredicate.ts
function createObjectPredicate(propertiesOrPredicate) {
  return typeof propertiesOrPredicate === "function" ? propertiesOrPredicate : createPropertiesPredicate(propertiesOrPredicate);
}
function createPropertiesPredicate(properties) {
  const isKnownProperty = createTypeGuard(castArray(properties));
  return (_value, key) => isKnownProperty(key);
}

// src/functions/objectEntries/objectEntries.ts
var objectEntries = Object.entries;

// src/functions/_internal/filterObject/filterObject.ts
function filterObject(object, predicate) {
  if (object == null) {
    return {};
  }
  return Object.fromEntries(
    objectEntries(object).filter(
      ([key, value]) => predicate(
        value,
        key,
        object
      )
    )
  );
}

// src/functions/pick/pick.ts
function pick(object, propertiesOrPredicate) {
  return filterObject(object, createObjectPredicate(propertiesOrPredicate));
}

exports.pick = pick;
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