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export type GetReadingTimeReturn = {
/**
* The reading time rounded to minutes.
*/
inMinutes: () => number;
/**
* The reading time in minutes and seconds.
*/
inMinutesAndSeconds: () => {
minutes: number;
seconds: number;
};
};
/**
* Retrieve the reading time from a words count.
*
* @param {number} wordsCount - The number of words.
* @param {number} [wordsPerMinute] - How many words can we read per minute?
* @returns {GetReadingTimeReturn} Two methods to retrieve the reading time.
*/
export const getReadingTimeFrom = (
wordsCount: number,
wordsPerMinute = 245
): GetReadingTimeReturn => {
const ONE_MINUTE_IN_SECONDS = 60;
const wordsPerSecond = wordsPerMinute / ONE_MINUTE_IN_SECONDS;
const estimatedTimeInSeconds = wordsCount / wordsPerSecond;
return {
inMinutes: () => Math.round(estimatedTimeInSeconds / ONE_MINUTE_IN_SECONDS),
inMinutesAndSeconds: () => {
const estimatedTimeInMinutes = Math.floor(
estimatedTimeInSeconds / ONE_MINUTE_IN_SECONDS
);
return {
minutes: estimatedTimeInMinutes,
seconds: Math.round(
estimatedTimeInSeconds -
estimatedTimeInMinutes * ONE_MINUTE_IN_SECONDS
),
};
},
};
};
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