Check If An Array Contains A String In Javascript With Code Examples

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Check If An Array Contains A String In Javascript With Code Examples

In this lesson, we’ll use programming to attempt to resolve the Check If An Array Contains A String In Javascript puzzle. The code proven under demonstrates this.

phrasesArray = ['hello', 'to', 'nice', 'day']
yourString = 'Hello. Today is a pleasant day'.toLowerCase()
end result = phrasesArray.each(w => yourString.consists of(w))
console.log('end result:', end result)

Below is an inventory of various approaches that may be taken to resolve the Check If An Array Contains A String In Javascript downside.

const colours = ['red', 'green', 'blue'];
const end result = colours.consists of('crimson');

console.log(end result); // true
perform droids(arr) {
  let end result="These aren't the droids you"re in search of';
  for(let i=0; i<arr.size;i++) {
      if (arr[i] === 'Droids') {
      end result="Found Droid";
    }
  }
  return end result;
}

// Uncomment these to verify your work! 
const starWars = ["Luke", "Finn", "Rey", "Kylo", "Droids"]
const thrones = ["Jon", "Danny", "Tyrion", "The Mountain", "Cersei"]
console.log(droids(starWars)) // ought to log: "Found Droids!"
console.log(droids(thrones)) // ought to log: "These aren't the droi





//A easier method 

console.log(starWars.consists of('Droids') ? 'Droid Found' : 'These aren't the droids you are in search of');
console.log(thrones.consists of('Droids') ? 'Droid Found' : 'These aren't the droids you are in search of');
perform verifyInput(enter, phrases) {
 return phrases.some(phrase => new RegExp(phrase, "i").take a look at(enter));
}

console.log(verifyInput('"Definitely," he stated in a matter-of-fact tone.', 
["matter", "definitely"]));

We have seen resolve the Check If An Array Contains A String In Javascript with numerous examples.

How do you verify if an array accommodates a string in JavaScript?

You can use the consists of() methodology in JavaScript to verify if an merchandise exists in an array. You also can use it to verify if a substring exists inside a string. It returns true if the merchandise is discovered within the array/string and false if the merchandise does not exist.28-Jun-2022

How do I verify if an array accommodates a string?

To verify if a string is contained in an array, name the indexOf methodology, passing it the string as a parameter. The indexOf methodology returns the index of the primary incidence of the string within the array, or -1 if the string isn’t contained within the array.25-Jul-2022

How do you verify if a string accommodates a phrase from an array?

To verify if a string accommodates a substring from an array:

  • Use the Array. some() methodology to iterate over the array.
  • Check if the string accommodates every substring.
  • If the situation is met, the string accommodates a substring from the array.

How do you verify worth is exists in array in JavaScript?

The indexof() methodology in Javascript is among the most handy methods to seek out out whether or not a worth exists in an array or not. The indexof() methodology works on the phenomenon of index numbers. This methodology returns the index of the array if discovered and returns -1 in any other case.

How do you verify if an array accommodates a selected worth?

For primitive values, use the array. consists of() methodology to verify if an array accommodates a worth. For objects, use the isEqual() helper perform to check objects and array. some() methodology to verify if the array accommodates the article.

How do you verify if a worth exists in an array?

The easiest and quickest technique to verify if an merchandise is current in an array is by utilizing the Array. indexOf() methodology. This methodology searches the array for the given merchandise and returns its index. If no merchandise is discovered, it returns -1.10-Sept-2022

Is ingredient in array JS?

  • To verify if an array accommodates a component in JavaScript, use the array consists of() methodology.
  • To verify if an array accommodates the particular merchandise, use the array consists of() perform.
  • JavaScript consists of() methodology restricts whether or not an array accommodates a specific ingredient amongst its entries, returning true or false as applicable.

How do you verify if an array doesn’t comprise a worth JavaScript?

To verify if an array does not embody a worth, use the logical NOT (!) operator to negate the decision to the consists of() methodology. The NOT (!) operator returns false when known as on a real worth and vice versa.25-Jul-2022

How do you verify a string is current in array or not in Java?

accommodates() Method: List accommodates() methodology in Java is used for checking if the desired ingredient exists within the given checklist or not.13-Jun-2022

How do I verify if a string accommodates a selected phrase in Javascript?

The consists of() methodology returns true if a string accommodates a specified string. Otherwise it returns false . The consists of() methodology is case delicate.

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