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GeezerVison is showing github.com — Numbers by diogoosz · Pull Request #478 · javascript-tutorial/pt.javascript.info

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diogoosz commented Nov 8, 2026

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Tradução do artigo "Numbers" para o português, incluindo os exercícios.

Conforme comentado na #1.

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diogoosz and others added 3 commits

November 8, 2026 19:41


          Translate "Numbers" article to Portuguese

184c6ee

Co-Authored-By: Claude Sonnet 5 <[email protected]>


          Fix broken IEEE-754 pt.wikipedia link (page doesn't exist)

f658ccc

Co-Authored-By: Claude Sonnet 5 <[email protected]>


          Remove Arrays translation files accidentally included on this branch

38ebf01

These belong on a separate branch (translate-arrays), not here.

Co-Authored-By: Claude Sonnet 5 <[email protected]>

gabifs reviewed

Nov 12, 2026

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1-js/05-data-types/02-number/article.md

		let billion = 1e9; // 1 bilhão, literalmente: 1 e 9 zeros

		alert( 7.3e9 ); // 7.3 billions (same as 7300000000 or 7_300_000_000)
		alert( 7.3e9 ); // 7,3 bilhões (o mesmo que 7300000000 ou 7_300_000_000)

gabifs Nov 12, 2026

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Separador decimal misturado: o comentário diz 7,3 bilhões logo ao lado do código 7.3e9 (e a linha 27 usa "7,3bi"), enquanto o resto do artigo usa ponto (12.34, 0.1). Um iniciante pode achar que 7,3 é um literal válido em JS (na verdade, é o operador vírgula e resulta em 3). Sugiro manter 7.3 como no original.

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1-js/05-data-types/02-number/article.md

		1. Multiplicar e dividir.

		For example, to round the number to the 2nd digit after the decimal, we can multiply the number by `100`, call the rounding function and then divide it back.
		Por exemplo, para arredondar o número até o 2º dígito depois da vírgula, podemos multiplicar o número por `100`, chamar a função de arredondamento e depois dividir de volta.

gabifs Nov 12, 2026

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Terminologia inconsistente: aqui (e nas linhas 157 e 172) está "depois da vírgula", mas as linhas 68, 143, 197 e 263 usam "ponto decimal". Como os exemplos são 1.2345/1.23456, onde o separador é um ponto, "vírgula" confunde. Sugiro padronizar com "ponto decimal".

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1-js/05-data-types/02-number/article.md

		Agora vamos escrever algo bem pequeno. Digamos, 1 microssegundo (um milionésimo de segundo):

		```js
		let mсs = 0.000001;

gabifs Nov 12, 2026

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Pré-existente no original, mas está dentro do hunk: mсs usa o с cirílico (U+0441), e a linha 53 usa mcs latino. Quem copiar os dois trechos fica com dois identificadores diferentes. Sugiro trocar pelo c latino.

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1-js/05-data-types/02-number/article.md


		```js
		let mcs = 1e-6; // five zeroes to the left from 1
		let mcs = 1e-6; // cinco zeros à esquerda do 1

gabifs Nov 12, 2026

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O comentário "cinco zeros à esquerda do 1" contradiz a linha 55 ("há 6 deles"), e 0.000001 tem seis zeros. Já estava assim no original, mas dá para corrigir na tradução: "seis zeros à esquerda do 1".

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1-js/05-data-types/02-number/article.md

		```js run
		alert( 0xff ); // 255
		alert( 0xFF ); // 255 (the same, case doesn't matter)
		alert( 0xFF ); // 255 (o mesmo, a caixa não importa)

gabifs Nov 12, 2026

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"a caixa não importa" é jargão tipográfico e fica obscuro para iniciantes. Sugiro: "o mesmo, maiúsculas ou minúsculas não importam".

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1-js/05-data-types/02-number/1-sum-interface/solution.md

		```

		Note the unary plus `+` before `prompt`. It immediately converts the value to a number.
		Observe o mais unário `+` antes de `prompt`. Ele converte o valor para um número imediatamente.

gabifs Nov 12, 2026

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"mais unário" (aqui e nas linhas 193 e 388 do article.md) não bate com o termo do capítulo de operadores (1-js/02-first-steps/08-operators/article.md:128,132: "+ unário" / "positivo unário"). Vale padronizar para que o leitor reconheça o mesmo conceito.

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1-js/05-data-types/02-number/3-repeat-until-number/_js.view/test.js

		describe("readNumber", function() {

		it("if a number, returns it", function() {
		it("se for um número, retorna ele", function() {

gabifs Nov 12, 2026

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"retorna ele" (aqui e na linha 16) usa o pronome reto como objeto, o que é coloquial e foge da norma. Sugiro "retorna o número" / "retorna 0" (ou "retorna-o").

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gabifs mentioned this pull request

Nov 12, 2026

Portuguese Translation Progress #1

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