I have a collection of phrases structured like so:
[
{
text: "This is a sentence."
boldSubstrings: [
{ offset: 5, length: 2 }
]
}
]
My goal is to display each phrase as a line using the following format:
lines.map(elem => <p>{elem.text}</p>);
Is there a way to style the specified words in bold (resulting in "This is a sentence.")? Any suggestions?
This code snippet is effective:
const strings = [
{
text: "Here is an example.",
boldParts: [
{ start: 5, length: 2 },
{ start: 8, length: 1 }
]
}
];
strings.map(({text, boldParts}) => {
let previousStart = 0;
const segmentedTexts = [];
for (let part of boldParts) {
segmentedTexts.push(text.substr(previousStart, part.start - previousStart));
segmentedTexts.push(<b>{text.substr(part.start, part.length)}</b>);
previousStart = part.start + part.length;
}
segmentedTexts.push(text.substr(previousStart));
return <p>{segmentedTexts}</p>;
});
Resulting in:
<p>Here <b>is</b> <b>an</b> example.</p>
This particular element is designed to handle the task at hand. It shares similarities with the above answer, but I have personally crafted this version! The assumption here is that the bold segments are always in sorted order. Keep in mind that it does not perform any argument validation, so use caution!
function FormattedLine({ text, boldSubstrings }) {
let position = 0;
const fragments = [];
boldSubstrings.forEach(({ offset, length }) => {
if (position < offset) {
const paragraph = text.substr(position, offset - position);
fragments.push({ text: paragraph, isBold: false });
}
if (length) {
fragments.push({ text: text.substr(offset, length), isBold: true });
position = offset + length;
}
});
if (position < text.length) {
fragments.push({
text: text.substr(position, text.length - position),
isBold: false
});
}
return (
<p>
{fragments.map(({ text: fragmentText, isBold }) =>
isBold ? <b>{fragmentText}</b> : fragmentText
)}
</p>
);
}
If you're looking to enhance text styling in React, consider using react-substring-styler. It seamlessly achieves the desired effects without causing any disruptions to your project's structure or how texts are stored.
To get started, install react-substring-styler by running:
npm install react-substring-styler
or
yarn add react-substring-styler
Here's an example of how you can use this library:
const text = "This text is going to be [bold]."
<ParsedText patterns={
[{type: "squareBrackets", style: {fontWeight: "bold"}}]}>
{text}
</ParsedText>
For more information, visit https://github.com/pborgesjr/react-substring-styler or check out the package on NPM at https://www.npmjs.com/package/react-substring-styler
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