https://github.com/keng42/js-ext

Some commonly used js functions
https://github.com/keng42/js-ext

Last synced: 1 day ago
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Some commonly used js functions

• Host: GitHub
• URL: https://github.com/keng42/js-ext
• Owner: keng42
• License: mit
• Created: 2017-10-29T09:41:52.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2020-08-19T03:59:05.000Z (about 4 years ago)
• Last Synced: 2024-10-30T15:13:34.143Z (18 days ago)
• Language: TypeScript
• Homepage:
• Size: 22.5 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# js-ext

Some commonly used js functions

1. Safe floating point number calculation

2. Determine if a variable is of a certain type

3. Outputs formatted date strings in China Standard Time regardless of the current time zone

4. Wrap setTimeount into a sleep function

## Usage

```ts

import jsExt from 'js-ext';

// number

jsExt.pad(6); // '06'

jsExt.pad(44); // '44'

jsExt.pad(89, 4); // '0089'

jsExt.safeAdd(0.1, 0.2); // 0.3

jsExt.safeSub(0.3, 0.2); // 0.1

jsExt.safeMul(0.1, 0.2); // 0.02

jsExt.safeDiv(0.3, 0.1); // 3

// type

jsExt.isArray([1]);

jsExt.isBoolean(false);

jsExt.isDate(new Date());

jsExt.isError(new Error(''));

jsExt.isFunction(() => {});

jsExt.isNull(null);

jsExt.isNumber(0);

jsExt.isRegExp(/\d+/);

jsExt.isString('0');

jsExt.isUndefined(undefined);

// date

const da = new Date('1989-04-05T12:02:03Z');

jsExt.toChinaTimeString(da); // '20:02:03'

jsExt.toChinaDateString(da); // '1989-04-05 20:02:03'

jsExt.toChineseDateString(da); // '1989年04月05日 20:02:03'

jsExt.ts(da); // '19890405200203'

jsExt.ts8(da); // '19890405'

jsExt.ts6(da); // '200203'

// sleep

(async () => {

  await jsExt.sleep(1000, 'say hi');

})();

```

### Browser

```html

  const jsExt = require('js-ext');

  console.log(jsExt.ts(new Date()));

```