CODEWITHSUNDEEP
javascriptarraysreactjs
Guilherme Ramos
Guilherme Ramos

Reputation: 155

How to find an sentence inside of an array of words and join the words

Follow the example:

const arrayOfSentences = ['fallen little short', 'hold the nominal office of governess', 'shadow of authority', 'the real evils indeed']
const arrayOfwords = ['who', 'had','fallen', 'little','short','of','a','mother','in','affection','hold','the','nominal','office','of','governess','the','mildness','of','her','temper','had','hardly','allowed','her','to','impose','any','restraint;','and','the','shadow','of','authority','being','now','long','passed','away,','they','had']

the output should be the array of words but with the sentences merged, for example ("fallen", "little", "short" -> "fallen little short"): 

const mergedArray = ['who', 'had','fallen little short','of','a','mother','in','affection','hold the nominal office of 
governess','the','mildness','of','her','temper','had','hardly','allowed','her','to','impose','any','restraint;','and','the','shadow of authority','being','now','long','passed','away,','they','had']

Upvotes: 0

Views: 271

Answers (1)

Hao Wu
Hao Wu

Reputation: 20734

Here's a sneaky way to do that:

const arrayOfSentences = ['fallen little short', 'hold the nominal office of governess', 'shadow of authority', 'the real evils indeed']
const arrayOfwords = ['who', 'had','fallen', 'little','short','of','a','mother','in','affection','hold','the','nominal','office','of','governess','the','mildness','of','her','temper','had','hardly','allowed','her','to','impose','any','restraint;','and','the','shadow','of','authority','being','now','long','passed','away,','they','had']

let sentence = arrayOfwords.join(' ');

arrayOfSentences.forEach(s => {
  sentence = sentence.replace(s, s.replace(/\s/g, '|'));
});

const mergedArray = sentence.split(' ').map(s => s.replace(/\|/g, ' '));

console.log(mergedArray);

Basically what it does is to make the whole arrayOfwords a sentence.

Then loop through the arrayOfSentences to find the appearances in that sentence and replace them to some placeholders.

Then re-split the sentence to an array, and replace the placeholders as what it was in arrayOfSentences.

Upvotes: 3

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