isDOM

说明

检查是否DOM元素

源码

https://github.com/ddzy/ts-utility-plugins/tree/master/src/ddzy/utility/dom/isDOM

用法

isDOM.test.ts

import { isDOM } from "../../utility/dom/isDOM";

describe('isDOM', () => {
  test('isDOM should return `false` if  received a non DOM object', () => {
    const origin = [
      0, Number.MAX_SAFE_INTEGER, Number.MIN_VALUE,
      '', 'ddzy',
      {},
      true, false,
      function () { },
      [],
    ];

    for (const v of origin) {
      expect(isDOM(v)).toBeFalsy();
    }
  });

  test('isDOM should return `true` if  received a DOM object', () => {
    const origin = [
      document.createElement('div'),
      document.body
    ];

    for (const v of origin) {
      expect(isDOM(v)).toBeTruthy();
    }
  });
});