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Top 10 Examples of "core-js-pure in functional component" in JavaScript

Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'core-js-pure' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.

QUnit.test('URLSearchParams#forEach', assert => {
  const { forEach } = URLSearchParams.prototype;
  assert.isFunction(forEach);
  assert.arity(forEach, 1);
  assert.enumerable(URLSearchParams.prototype, 'forEach');

  const expectedValues = { a: '1', b: '2', c: '3' };
  let params = new URLSearchParams('a=1&b=2&c=3');
  let result = '';
  params.forEach((value, key, that) => {
    assert.same(params.get(key), expectedValues[key]);
    assert.same(value, expectedValues[key]);
    assert.same(that, params);
    result += key;
  });
  assert.same(result, 'abc');

  new URL('http://a.b/c').searchParams.forEach(() => {
    assert.ok(false, 'should not be called');
  });

  // fails in Chrome 66-
  if (DESCRIPTORS) {
    const url = new URL('http://a.b/c?a=1&b=2&c=3&d=4');
QUnit.test('URL constructor', assert => {
  assert.isFunction(URL);
  assert.arity(URL, 1);

  assert.same(String(new URL('http://www.domain.com/a/b')), 'http://www.domain.com/a/b');
  assert.same(String(new URL('/c/d', 'http://www.domain.com/a/b')), 'http://www.domain.com/c/d');
  assert.same(String(new URL('b/c', 'http://www.domain.com/a/b')), 'http://www.domain.com/a/b/c');
  assert.same(String(new URL('b/c', new URL('http://www.domain.com/a/b'))), 'http://www.domain.com/a/b/c');
  assert.same(String(new URL({ toString: () => 'https://example.org/' })), 'https://example.org/');

  assert.same(String(new URL('nonspecial://example.com/')), 'nonspecial://example.com/');

  assert.same(String(new URL('https://測試')), 'https://xn--g6w251d/', 'unicode parsing');
  assert.same(String(new URL('https://xxпривет.тест')), 'https://xn--xx-flcmn5bht.xn--e1aybc/', 'unicode parsing');
  assert.same(String(new URL('https://xxПРИВЕТ.тест')), 'https://xn--xx-flcmn5bht.xn--e1aybc/', 'unicode parsing');
  assert.same(String(new URL('http://Example.com/', 'https://example.org/')), 'http://example.com/');
  assert.same(String(new URL('https://Example.com/', 'https://example.org/')), 'https://example.com/');
  assert.same(String(new URL('nonspecial://Example.com/', 'https://example.org/')), 'nonspecial://Example.com/');
  assert.same(String(new URL('http:Example.com/', 'https://example.org/')), 'http://example.com/');
  assert.same(String(new URL('https:Example.com/', 'https://example.org/')), 'https://example.org/Example.com/');
  assert.same(String(new URL('nonspecial:Example.com/', 'https://example.org/')), 'nonspecial:Example.com/');

  assert.same(String(new URL('http://0300.168.0xF0')), 'http://192.168.0.240/');
  assert.same(String(new URL('http://[20:0:0:1:0:0:0:ff]')), 'http://[20:0:0:1::ff]/');
  // assert.same(String(new URL('http://257.168.0xF0')), 'http://257.168.0xf0/', 'incorrect IPv4 parsed as host'); // TypeError in Chrome and Safari
  assert.same(String(new URL('http://0300.168.0xG0')), 'http://0300.168.0xg0/', 'incorrect IPv4 parsed as host');
QUnit.test('URL#password', assert => {
  let url = new URL('http://zloirock.ru/');

  if (DESCRIPTORS) {
    assert.ok(!hasOwnProperty.call(url, 'password'));
    const descriptor = Object.getOwnPropertyDescriptor(URL.prototype, 'password');
    assert.same(descriptor.enumerable, true);
    assert.same(descriptor.configurable, true);
    assert.same(typeof descriptor.get, 'function');
    assert.same(typeof descriptor.set, 'function');
  }

  assert.same(url.password, '');

  url = new URL('http://username:password@zloirock.ru/');
  assert.same(url.password, 'password');

  // url = new URL('http://:password@zloirock.ru/'); // TypeError in FF
QUnit.test('URL constructor', assert => {
  assert.isFunction(URL);
  assert.arity(URL, 1);

  assert.same(String(new URL('http://www.domain.com/a/b')), 'http://www.domain.com/a/b');
  assert.same(String(new URL('/c/d', 'http://www.domain.com/a/b')), 'http://www.domain.com/c/d');
  assert.same(String(new URL('b/c', 'http://www.domain.com/a/b')), 'http://www.domain.com/a/b/c');
  assert.same(String(new URL('b/c', new URL('http://www.domain.com/a/b'))), 'http://www.domain.com/a/b/c');
  assert.same(String(new URL({ toString: () => 'https://example.org/' })), 'https://example.org/');

  assert.same(String(new URL('nonspecial://example.com/')), 'nonspecial://example.com/');

  assert.same(String(new URL('https://測試')), 'https://xn--g6w251d/', 'unicode parsing');
  assert.same(String(new URL('https://xxпривет.тест')), 'https://xn--xx-flcmn5bht.xn--e1aybc/', 'unicode parsing');
  assert.same(String(new URL('https://xxПРИВЕТ.тест')), 'https://xn--xx-flcmn5bht.xn--e1aybc/', 'unicode parsing');
  assert.same(String(new URL('http://Example.com/', 'https://example.org/')), 'http://example.com/');
  assert.same(String(new URL('https://Example.com/', 'https://example.org/')), 'https://example.com/');
  assert.same(String(new URL('nonspecial://Example.com/', 'https://example.org/')), 'nonspecial://Example.com/');
  assert.same(String(new URL('http:Example.com/', 'https://example.org/')), 'http://example.com/');
  assert.same(String(new URL('https:Example.com/', 'https://example.org/')), 'https://example.org/Example.com/');
  assert.same(String(new URL('nonspecial:Example.com/', 'https://example.org/')), 'nonspecial:Example.com/');

  assert.same(String(new URL('http://0300.168.0xF0')), 'http://192.168.0.240/');
  assert.same(String(new URL('http://[20:0:0:1:0:0:0:ff]')), 'http://[20:0:0:1::ff]/');
  // assert.same(String(new URL('http://257.168.0xF0')), 'http://257.168.0xf0/', 'incorrect IPv4 parsed as host'); // TypeError in Chrome and Safari
QUnit.test('Map#deleteAll', assert => {
  const { deleteAll } = Map.prototype;

  assert.isFunction(deleteAll);
  assert.arity(deleteAll, 0);
  assert.nonEnumerable(Map.prototype, 'deleteAll');

  let set = new Map([[1, 2], [2, 3], [3, 4]]);
  assert.same(set.deleteAll(1, 2), true);
  assert.deepEqual(from(set), [[3, 4]]);

  set = new Map([[1, 2], [2, 3], [3, 4]]);
  assert.same(set.deleteAll(3, 4), false);
  assert.deepEqual(from(set), [[1, 2], [2, 3]]);

  set = new Map([[1, 2], [2, 3], [3, 4]]);
  assert.same(set.deleteAll(4, 5), false);
  assert.deepEqual(from(set), [[1, 2], [2, 3], [3, 4]]);

  set = new Map([[1, 2], [2, 3], [3, 4]]);
  assert.same(set.deleteAll(), true);
  assert.deepEqual(from(set), [[1, 2], [2, 3], [3, 4]]);

  assert.notThrows(() => !deleteAll.call({ delete() { /* empty */ } }, 1, 2, 3));
  assert.throws(() => deleteAll.call({}, 1, 2, 3), TypeError);
  assert.throws(() => deleteAll.call(undefined, 1, 2, 3), TypeError);
QUnit.test('Map#findKey', assert => {
  const { findKey } = Map.prototype;

  assert.isFunction(findKey);
  assert.arity(findKey, 1);
  assert.nonEnumerable(Map.prototype, 'findKey');

  const set = new Map([[1, 2]]);
  const context = {};
  set.findKey(function (value, key, that) {
    assert.same(arguments.length, 3, 'correct number of callback arguments');
    assert.same(value, 2, 'correct value in callback');
    assert.same(key, 1, 'correct key in callback');
    assert.same(that, set, 'correct link to set in callback');
    assert.same(this, context, 'correct callback context');
  }, context);

  assert.same(new Map([[1, 2], [2, 3], [3, 4]]).findKey(it => it % 2), 2);
  assert.same(new Map().findKey(it => it === 42), undefined);

  assert.throws(() => findKey.call({}, () => { /* empty */ }), TypeError);
  assert.throws(() => findKey.call(undefined, () => { /* empty */ }), TypeError);
  assert.throws(() => findKey.call(null, () => { /* empty */ }), TypeError);
});
QUnit.test('Map#find', assert => {
  const { find } = Map.prototype;

  assert.isFunction(find);
  assert.arity(find, 1);
  assert.nonEnumerable(Map.prototype, 'find');

  const set = new Map([[1, 2]]);
  const context = {};
  set.find(function (value, key, that) {
    assert.same(arguments.length, 3, 'correct number of callback arguments');
    assert.same(value, 2, 'correct value in callback');
    assert.same(key, 1, 'correct key in callback');
    assert.same(that, set, 'correct link to set in callback');
    assert.same(this, context, 'correct callback context');
  }, context);

  assert.same(new Map([[1, 2], [2, 3], [3, 4]]).find(it => it % 2), 3);
  assert.same(new Map().find(it => it === 42), undefined);

  assert.throws(() => find.call({}, () => { /* empty */ }), TypeError);
  assert.throws(() => find.call(undefined, () => { /* empty */ }), TypeError);
  assert.throws(() => find.call(null, () => { /* empty */ }), TypeError);
});
QUnit.test('Set#filter', assert => {
  const { filter } = Set.prototype;

  assert.isFunction(filter);
  assert.arity(filter, 1);
  assert.name(filter, 'filter');
  assert.nonEnumerable(Set.prototype, 'filter');

  const set = new Set([1]);
  const context = {};
  set.filter(function (value, key, that) {
    assert.same(arguments.length, 3, 'correct number of callback arguments');
    assert.same(value, 1, 'correct value in callback');
    assert.same(key, 1, 'correct key in callback');
    assert.same(that, set, 'correct link to set in callback');
    assert.same(this, context, 'correct callback context');
  }, context);

  assert.ok(new Set().filter(it => it) instanceof Set);

  assert.deepEqual(from(new Set([1, 2, 3, 'q', {}, 4, true, 5]).filter(it => typeof it === 'number')), [1, 2, 3, 4, 5]);

  assert.throws(() => filter.call({}, () => { /* empty */ }), TypeError);
  assert.throws(() => filter.call(undefined, () => { /* empty */ }), TypeError);
  assert.throws(() => filter.call(null, () => { /* empty */ }), TypeError);
QUnit.test('Set#addAll', assert => {
  const { addAll } = Set.prototype;

  assert.isFunction(addAll);
  assert.arity(addAll, 0);
  assert.name(addAll, 'addAll');
  assert.nonEnumerable(Set.prototype, 'addAll');

  const set = new Set([1]);
  assert.same(set.addAll(2), set);

  assert.deepEqual(from(new Set([1, 2, 3]).addAll(4, 5)), [1, 2, 3, 4, 5]);
  assert.deepEqual(from(new Set([1, 2, 3]).addAll(3, 4)), [1, 2, 3, 4]);
  assert.deepEqual(from(new Set([1, 2, 3]).addAll()), [1, 2, 3]);

  assert.notThrows(() => addAll.call({ add() { /* empty */ } }, 1, 2, 3));
  assert.throws(() => addAll.call({}, 1, 2, 3), TypeError);
  assert.throws(() => addAll.call(undefined, 1, 2, 3), TypeError);
  assert.throws(() => addAll.call(null, 1, 2, 3), TypeError);
});
QUnit.test('Set#some', assert => {
  const { some } = Set.prototype;

  assert.isFunction(some);
  assert.arity(some, 1);
  assert.name(some, 'some');
  assert.nonEnumerable(Set.prototype, 'some');

  const set = new Set([1]);
  const context = {};
  set.some(function (value, key, that) {
    assert.same(arguments.length, 3, 'correct number of callback arguments');
    assert.same(value, 1, 'correct value in callback');
    assert.same(key, 1, 'correct key in callback');
    assert.same(that, set, 'correct link to set in callback');
    assert.same(this, context, 'correct callback context');
  }, context);

  assert.same(new Set([1, 2, 3]).some(it => typeof it === 'number'), true);
  assert.same(new Set(['1', '2', '3']).some(it => typeof it === 'number'), false);
  assert.same(new Set([1, '2', 3]).some(it => typeof it === 'number'), true);
  assert.same(new Set().some(it => typeof it === 'number'), false);

  assert.throws(() => some.call({}, () => { /* empty */ }), TypeError);
  assert.throws(() => some.call(undefined, () => { /* empty */ }), TypeError);

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