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feat(new-tool): percentage calculator (#456)

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* feat(new tool): percentage calculator

* Apply suggestions from code review

Co-authored-by: Corentin THOMASSET <corentin.thomasset74@gmail.com>

---------

Co-authored-by: Corentin THOMASSET <corentin.thomasset74@gmail.com>
This commit is contained in:
Seb 2023-06-18 17:24:39 +01:00 • committed by GitHub
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5 changed files with 129 additions and 1 deletions
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3
src/tools/index.ts
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@ -33,6 +33,7 @@ import { tool as dateTimeConverter } from './date-time-converter';
import { tool as deviceInformation } from './device-information';
import { tool as cypher } from './encryption';
import { tool as etaCalculator } from './eta-calculator';
import { tool as percentageCalculator } from './percentage-calculator';
import { tool as gitMemo } from './git-memo';
import { tool as hashText } from './hash-text';
import { tool as hmacGenerator } from './hmac-generator';
@ -126,7 +127,7 @@ export const toolsByCategory: ToolCategory[] = [
},
{
name: 'Math',
components: [mathEvaluator, etaCalculator],
components: [mathEvaluator, etaCalculator, percentageCalculator],
},
{
name: 'Measurement',

12
src/tools/percentage-calculator/index.ts Normal file
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@ -0,0 +1,12 @@
import { Percentage } from '@vicons/tabler';
import { defineTool } from '../tool';
export const tool = defineTool({
name: 'Percentage calculator',
path: '/percentage-calculator',
description: 'Easily calculate percentages from a value to another value, or from a percentage to a value.',
keywords: ['percentage', 'calculator', 'calculate', 'value', 'number', '%'],
component: () => import('./percentage-calculator.vue'),
icon: Percentage,
createdAt: new Date('2023-06-18'),
});

36
src/tools/percentage-calculator/percentage-calculator.e2e.spec.ts Normal file
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@ -0,0 +1,36 @@
import { expect, test } from '@playwright/test';
test.describe('Tool - Percentage calculator', () => {
test.beforeEach(async ({ page }) => {
await page.goto('/percentage-calculator');
});
test('Has correct title', async ({ page }) => {
await expect(page).toHaveTitle('Percentage calculator - IT Tools');
});
test('Correctly works out percentages', async ({ page }) => {
await page.getByTestId('percentageX').locator('input').fill('123');
await page.getByTestId('percentageY').locator('input').fill('456');
await expect(page.getByTestId('percentageResult').locator('input')).toHaveValue('560.88');
await page.getByTestId('numberX').locator('input').fill('123');
await page.getByTestId('numberY').locator('input').fill('456');
await expect(page.getByTestId('numberResult').locator('input')).toHaveValue('26.973684210526315');
await page.getByTestId('numberFrom').locator('input').fill('123');
await page.getByTestId('numberTo').locator('input').fill('456');
await expect(page.getByTestId('percentageIncreaseDecrease').locator('input')).toHaveValue('270.7317073170732');
});
test('Displays empty results for incomplete input', async ({ page }) => {
await page.getByTestId('percentageX').locator('input').fill('123');
await expect(page.getByTestId('percentageResult').locator('input')).toHaveValue('');
await page.getByTestId('numberY').locator('input').fill('456');
await expect(page.getByTestId('numberResult').locator('input')).toHaveValue('');
await page.getByTestId('numberFrom').locator('input').fill('123');
await expect(page.getByTestId('percentageIncreaseDecrease').locator('input')).toHaveValue('');
});
});

78
src/tools/percentage-calculator/percentage-calculator.vue Normal file
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@ -0,0 +1,78 @@
<script setup lang="ts">
const percentageX = ref();
const percentageY = ref();
const percentageResult = computed(() => {
if (percentageX.value === undefined || percentageY.value === undefined) {
return '';
}
return (percentageX.value / 100 * percentageY.value).toString();
});
const numberX = ref();
const numberY = ref();
const numberResult = computed(() => {
if (numberX.value === undefined || numberY.value === undefined) {
return '';
}
const result = 100 * numberX.value / numberY.value;
return (!Number.isFinite(result) || Number.isNaN(result)) ? '' : result.toString();
});
const numberFrom = ref();
const numberTo = ref();
const percentageIncreaseDecrease = computed(() => {
if (numberFrom.value === undefined || numberTo.value === undefined) {
return '';
}
const result = (numberTo.value - numberFrom.value) / numberFrom.value * 100;
return (!Number.isFinite(result) || Number.isNaN(result)) ? '' : result.toString();
});
</script>
<template>
<div style="flex: 0 0 100%">
<div style="margin: 0 auto; max-width: 600px">
<c-card mb-3>
<div mb-3 sm:hidden>
What is
</div>
<div flex gap-2>
<div hidden pt-1 sm:block style="min-width: 48px;">
What is
</div>
<n-input-number v-model:value="percentageX" data-test-id="percentageX" placeholder="X" />
<div min-w-fit pt-1>
% of
</div>
<n-input-number v-model:value="percentageY" data-test-id="percentageY" placeholder="Y" />
<input-copyable v-model:value="percentageResult" data-test-id="percentageResult" readonly placeholder="Result" style="max-width: 150px;" />
</div>
</c-card>
<c-card mb-3>
<div mb-3 sm:hidden>
X is what percent of Y
</div>
<div flex gap-2>
<n-input-number v-model:value="numberX" data-test-id="numberX" placeholder="X" />
<div hidden min-w-fit pt-1 sm:block>
is what percent of
</div>
<n-input-number v-model:value="numberY" data-test-id="numberY" placeholder="Y" />
<input-copyable v-model:value="numberResult" data-test-id="numberResult" readonly placeholder="Result" style="max-width: 150px;" />
</div>
</c-card>
<c-card mb-3>
<div mb-3>
What is the percentage increase/decrease
</div>
<div flex gap-2>
<n-input-number v-model:value="numberFrom" data-test-id="numberFrom" placeholder="From" />
<n-input-number v-model:value="numberTo" data-test-id="numberTo" placeholder="To" />
<input-copyable v-model:value="percentageIncreaseDecrease" data-test-id="percentageIncreaseDecrease" readonly placeholder="Result" style="max-width: 150px;" />
</div>
</c-card>
</div>
</div>
</template>