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@mamba/utils

v12.1.0

Published

Utility methods for mamba apps

Downloads

955

Readme

@mamba/utils

O pacote @mamba/utils contém métodos úteis para facilitar o desenvolvimento de aplicativos Mamba.

UI

import * as UI from '@mamba/utils/ui.js';

timeout(delay: Number): Promise

UI.timeout() move a execução do script para o final da pilha de execução. É uma simples abstração de um setTimeout que retorna uma Promise.

import { timeout } from '@mamba/utils/ui.js';

function init() {
  console.log('Log imediato');
  timeout(300).then(() => {
    console.log('Log após 300ms');
  });
}

init();

Com isso, é possível utilizar async/await para facilitar a leitura de alguns métodos:

import { timeout } from '@mamba/utils/ui.js';

async function init() {
  console.log('Log imediato');
  await timeout(300);
  console.log('Log após 300ms');
}

init();

Money

import * as Money from '@mamba/utils/money.js';

format(value: Number): string

Money.format() formata um valor númerico para um formato de dinheiro:

import { format } from '@mamba/utils/money.js';

format(100); // '100,00'
format(1000); // '1.000,00'
format(100000); // '100.000,00'
format(1000000.27); // '1.000.000,27'

padZero(value: Number | string): string

Money.padZero() adiciona um 0 para valores numéricos menores que 10 or strings de tamanho 1.

import { padZero } from '@mamba/utils/money.js';

padZero(1); // '01'
padZero('2'); // '02'
padZero(17); // '17'
padZero('230'); // '230'

Arredondando

  • round(value: Number): Number

  • ceil(value: Number): Number

  • floor(value: Number): Number

Money.round(), Money.ceil(), Money.floor() são similares aos métodos Math.* de mesmo nome. A principal diferença é que lidam com alguns erros de arrendondamento da linguagem e levam em conta o valor decimal.

import { round, ceil, floor } from '@mamba/utils/money.js';

Math.round(1.005); // 1
round(1.005); // 1.01

Math.floor(127.77 / 10); // 12
floor(127.77 / 10); // 12.77

Math.ceil(127.77 / 10); // 13
ceil(127.77 / 10); // 12.78

Date

import * as DateUtils from '@mamba/utils/date.js';

format(date: Date, mask: string): string

DateUtils.format() recebe um objeto Date retorna a data formatada de acordo com a string de máscara passada.

Os tokens suportados são:

  • d - dia: 1..31
  • dd - dia: 01..31
  • m - mês: 1..12
  • mm - mês: 01..12
  • yy - ano: 01..99
  • yyyy - ano: 2001..2099
  • h - hora: 0..12
  • hh - hora: 00..12
  • H - hora: 0..23
  • HH - hora: 00..23
  • M - minuto: 0..59
  • MM - minuto: 00..59
  • s - segundo: 0..59
  • ss - segundo: 00..59
import { format } from '@mamba/utils/date.js';

format(new Date(2019, 1, 20), 'dd/mm/yyyy')) // 20/02/2019
format(new Date(2019, 1, 20, 20, 30, 55), 'HH:MM:ss')) // 20:30:55