My hacky little script to identify common character pairs in the Wordle word list.

hacky-characters.js

// See https://jeremyfelt.com/2022/01/12/a-wordle-character-pair-strategy/

const words = []; // Populate with word list.
const wordScores = [];
const pairPositions = [];
const positionText =[ "first", "second", "third", "last" ];

words.forEach( word => {
	let position = 0;

	while ( position < 4 ) {
		let pair = word.slice( position, position + 2 );

		let log = pairPositions.find( item => item.pair === pair );

		if ( 'undefined' === typeof log ) {
			pairPositions.push( {
				pair,
				'first': 0,
				'second': 0,
				'third': 0,
				'last': 0,
				'total': 0,
			} );

			log = pairPositions.find( item => item.pair === pair );
		}

		log[ positionText[ position ] ]++;
		log.total++;
		position++;
	}
} );


words.forEach( word => {
	let position = 0;
	let score = 0;

	while ( position < 4 ) {
		let pair = word.slice(position, position + 2);

		let log = pairPositions.find( item => item.pair === pair );

		score = score + log.total;
		position++;
	}

	wordScores.push( { word, score } );
} );

// Output the top 20 words.
console.log( wordScores.sort( ( a, b ) => a.score < b.score ).slice( 0, 20 ) );