React i18n break lines in JSON String

Question

I'm working with i18next for react https://github.com/i18next/react-i18next. I'm struggling to break lines within the string in my JSON language file.

This is what I already tried, which doesn't break a new line:

• line: "This is a line. \n This is another line. \n Yet another line",
• line: ("This is a line."+ <br/> + "This is another line. \n Yet another line"),
• line: ('This is a line. <br/> This is another line. \n Yet another line'),

I obviously try to make a new line after each sentence. This is how I call it:

<TooltipLink onClick={() => {
    this.toggleHelpTextDialog(t('test:test.line'));
}}/>

Any ideas? Thanks!

Answer 1

You can do it with css white-space: pre-line; & \n in the translation text.

const root = document.getElementById('root');

i18next.init({
  lng: 'en',
  resources: {
    en: {
      translation: {
        "key": "Hello world\nThis sentence should appear on the second line"
        // ----------------^ new line char
      }
    }
  }
}, function(err, t) {
  // initialized and ready to go!
  root.innerHTML = i18next.t('key');
});

#root {
  white-space: pre-line;
}

<script src="https://unpkg.com/[email protected]/dist/umd/i18next.min.js"></script>

<div id="root"></div>

Answer 2

You can add specifically to TooltipLink styles:

white-space: pre-line;

then, your \n in locale will work.

Answer 3

For those that do not want to add css code all over their React components, you can use the Trans component in the react-i18next package.

Create a translation key-value similar to:

{
  "message": "This is a line.<1/>This is another line.<1/>Yet another line"
}

Then, in your React component, use the <Trans/> component as follows

<Trans i18nKey="message" components={{ 1: <br /> }} />

The translation value will be rendered as

See https://github.com/i18next/react-i18next/issues/282

Answer 4

for example you write below text in JSON language file.

text:"Hello \n How are you? \n what are you doing?"

and then in return part write

<div id='app'><div>

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

<script>
      render() {
          return (
              text.split('\n').map(c => {
                  return ( <p> {c} </p>) 
                   });
                 )
               }
              

              ReactDOM.render(
                <BreakLine / >
                document.getElementById('app')
              )
</script>

well, when call split method, try to create list and seperate from '\n' and with method map type each of them on paragraph so can break line ;))

Answer 5

For me, directly using this <br/> inside a string worked e.g

{ loremIpsum: "Lorem <br/> ipsum" }

<Trans
  i18nKey='loremIpsum'
/>

Answer 6

For more complex cases, you could be using <Trans /> component and any HTML tags and even create custom ones.

Example:

<Trans
  components={{ boldSpan: <MyTextComponent strong component="span" variant="body" /> }}
  i18nKey="YourNamespace:TEXT_KEY"
/>

While your JSON file (YourNamespace.json):

{
  "TEXT_KEY" : "<boldSpan>Lorem ipsum</boldSpan><br/>",
}

For more details, check here: https://react.i18next.com/latest/trans-component

Answer 7

you can simbly use dangerouslySetInnerHTML like this

{"text":"first <br/> second"}

then

<div dangerouslySetInnerHTML={{ __html: t('text') }}></div>