Picking a Single Word from a Collection of Words in JavaScript

Question

Picking a Single Word from a Collection of Words in JavaScript

In need of assistance with selecting specific words from an array. Take for instance this array:

var list = ['Brothers', 'Browsers', 'Dermatologist','Specialist','Optometry']

To perform the selection, I utilize the following script:

var pattern = "Der";
var matched = list.filter(a => a.indexOf(pattern) >= 0);

The matched variable will store:

['Dermatologist']

When changing the value of the pattern variable to "ist", the result would be:

['Dermatologist','Specialist']

Desiring filtering that only matches from the beginning of each word. For example, setting pattern to "Bro" should return:

['Brothers','Browsers']

If the pattern is set to "ers", then the result should be an empty array:

[]

Seeking assistance on achieving this functionality. Can anybody help?

javascript regex

Answer 1

Answer №1

To achieve this, you can utilize the startsWith method.

var words = ['Brothers', 'Browsers', 'Dermatologist','Specialist','Optometry']

var keyWord = "Der";
var result = words.filter(word => word.startsWith(keyWord));

console.log(result)

Answer 2

To achieve this, you can utilize the startsWith method.

var words = ['Brothers', 'Browsers', 'Dermatologist','Specialist','Optometry']

var keyWord = "Der";
var result = words.filter(word => word.startsWith(keyWord));

console.log(result)

Answer 3

Answer №2

To filter a list of words starting with "Bro" using regex, you can add a caret (^) before the pattern:

var words = ['Brothers', 'Browsers', 'Dermatologist','Specialist','Optometry'];

var pattern = /^Bro.*/;

var filteredWords = words.filter(word => pattern.test(word));

console.log(filteredWords);

Answer 4

To filter a list of words starting with "Bro" using regex, you can add a caret (^) before the pattern:

var words = ['Brothers', 'Browsers', 'Dermatologist','Specialist','Optometry'];

var pattern = /^Bro.*/;

var filteredWords = words.filter(word => pattern.test(word));

console.log(filteredWords);

Picking a Single Word from a Collection of Words in JavaScript

Answer №1

Answer №2

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