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Manage internationalization in a simple way, through TypeScript, declaration file, declare your multilingual every where in your code.
Intlayer is an internationalization library designed specifically for JavaScript developers. It allow the declaration of your content everywhere in your code. It converts declaration of multilingual content into structured dictionaries to integrate easily in your code. Using TypeScript, Intlayer make your development stronger and more efficient.
.
├── ClientComponent
│ ├── index.content.ts
│ └── index.tsx
└── ServerComponent
├── index.content.ts
└── index.tsx
// ./ClientComponent/index.content.ts
import { DeclarationContent, t } from "intlayer";
const clientComponentContent = {
key: "client-component",
content: {
myTranslatedContent: t({
en: "Hello World",
fr: "Bonjour le monde",
es: "Hola Mundo",
}),
},
} satisfies DeclarationContent;
export default clientComponentContent;
// ./ClientComponent/index.tsx
"use client";
import { useIntlayer } from "next-intlayer";
export const ClientComponent = () => {
const { myTranslatedContent } = useIntlayer("client-component");
return <span>{myTranslatedContent}</span>;
};
intlayer
package intend to declare your content in a structured way, using JavaScript.
To build dictionaries from this declaration, you can use intlayer-cli. And to interpret intlayer dictionaries you can interpreters, such as react-intlayer, or next-intlayer
See how to use intlayer with NextJS
Install the necessary packages using npm:
npm install intlayer
yarn add intlayer
pnpm add intlayer
Create and manage your content dictionaries:
// src/app/[locale]/page.content.ts
import { t, enu, type DeclarationContent } from "intlayer";
const pageContent = {
key: "page",
content: {
getStarted: {
main: t({
en: "Get started by editing",
fr: "Commencez par éditer",
es: "Comience por editar",
}),
pageLink: "src/app/page.tsx",
},
nestedContent: {
id: "enumeration",
numberOfCar: enu({
"<-1": "Less than minus one car",
"-1": "Minus one car",
"0": "No cars",
"1": "One car",
">5": "Some cars",
">19": "Many cars",
}),
},
},
} satisfies DeclarationContent;
// Content should be exported as default
export default pageContent;
// src/app/[locale]/page.content.mjs
import { t } from "intlayer";
/** @type {import('intlayer').DeclarationContent} */
const pageContent = {
id: "page",
getStarted: {
main: t({
en: "Get started by editing",
fr: "Commencez par éditer",
es: "Comience por editar",
}),
pageLink: "src/app/page.tsx",
},
nestedContent: {
id: "enumeration",
numberOfCar: enu({
"<-1": "Less than minus one car",
"-1": "Minus one car",
0: "No cars",
1: "One car",
">5": "Some cars",
">19": "Many cars",
}),
},
};
// Content should be exported as default
export default pageContent;
// src/app/[locale]/page.content.cjs
const { t } = require("intlayer");
/** @type {import('intlayer').DeclarationContent} */
const pageContent = {
id: "page",
getStarted: {
main: t({
en: "Get started by editing",
fr: "Commencez par éditer",
es: "Comience por editar",
}),
pageLink: "src/app/page.tsx",
},
nestedContent: {
id: "enumeration",
numberOfCar: enu({
"<-1": "Less than minus one car",
"-1": "Minus one car",
0: "No cars",
1: "One car",
">5": "Some cars",
">19": "Many cars",
}),
},
};
// Content should be exported as default
module.exports = pageContent;
// src/app/[locale]/page.content.json
{
id: "page",
getStarted: {
main: {
nodeType: "translation",
en: "Get started by editing",
fr: "Commencez par éditer",
es: "Comience por editar",
},
pageLink: "src/app/page.tsx",
},
nestedContent: {
id: "enumeration",
nodeType: "enumeration",
numberOfCar: {
"<-1": "Less than minus one car",
"-1": "Minus one car",
"0": "No cars",
"1": "One car",
">5": "Some cars",
">19": "Many cars",
},
},
}
This version emphasizes ease of use, practical steps, and the professional application of Intlayer in a Next.js environment.
FAQs
Manage internationalization in a simple way, through TypeScript, declaration file, declare your multilingual every where in your code.
The npm package intlayer receives a total of 75,119 weekly downloads. As such, intlayer popularity was classified as popular.
We found that intlayer demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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