Removing Timestamps from Yahoo News Titles

Yahoo News article titles include timestamps in Japanese format that need to be removed.

Timestamp Format

Titles contain timestamps like:

12/27(土) 10:45

Pattern: MM/DD(DayOfWeek) HH:MM

Where DayOfWeek is one of: 月, 火, 水, 木, 金, 土, 日

Removal Method

Use regex to strip the timestamp:

let title = "AI隆盛 アニメ業界の権利どう守る 12/27(土) 10:45";

// Remove timestamp pattern
title = title.replace(/\d{1,2}\/\d{1,2}\([月火水木金土日]\)\s*\d{1,2}:\d{2}$/, '').trim();

console.log(title); // "AI隆盛 アニメ業界の権利どう守る"

Also Remove Video Duration

Video articles may have duration prefix:

// Remove video duration (format: 0:59)
title = title.replace(/^\d{1,2}:\d{2}/, '').trim();

Complete Cleanup Function

function cleanYahooNewsTitle(title: string): string {
  let cleaned = title;

  // Remove video duration prefix
  cleaned = cleaned.replace(/^\d{1,2}:\d{2}/, '').trim();

  // Remove timestamp suffix
  cleaned = cleaned.replace(/\d{1,2}\/\d{1,2}\([月火水木金土日]\)\s*\d{1,2}:\d{2}$/, '').trim();

  return cleaned;
}

// Usage
const raw = "0:59 AI隆盛 アニメ業界の権利どう守る 12/27(土) 10:45";
const clean = cleanYahooNewsTitle(raw);
console.log(clean); // "AI隆盛 アニメ業界の権利どう守る"

Regex Breakdown

• ^\d{1,2}:\d{2} - Matches duration at start (e.g., "0:59")
• \d{1,2}\/\d{1,2} - Matches date (e.g., "12/27")
• \([月火水木金土日]\) - Matches day of week in parentheses
• \s*\d{1,2}:\d{2}$ - Matches time at end (e.g., " 10:45")