Answer by Tiago Bértolo for How do I check if an array includes a value in...
The fastest method in Javascript to find if an array contains a value is this:function existsInArrayForIgnoreDataType(arr, targetElem) { for (let i = 0; i < arr.length; i++) { if (arr[i] ==...
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Answer by Rohìt Jíndal for How do I check if an array includes a value in...
If you're just trying to check whether a value is included in a collection, It would be more appropriate to use a Set, As Arrays can have duplicate values whereas Sets cannot. Also, Replacing...
View ArticleAnswer by Aurobindo Bhuyan for How do I check if an array includes a value in...
There are several ways to find out.You can use inbuilt Array methods. The most prominently used is Array find method.const arr1 = [1, 2, 3, 4, 5]const result = arr1.find(ele => ele ===...
View ArticleAnswer by Shakil Abdus Shohid for How do I check if an array includes a value...
Complexity O(n/2)You can use any library function but I did it using core JavaScript. We search first search the element in the middle if we get return true, else we search the element in array from...
View ArticleAnswer by perona chan for How do I check if an array includes a value in...
see lots of resultsconst array = [1, 2, 3, 4, 2]console.log( array.indexOf(2), // 1 array.filter(e => e == 2), // [ 2, 2 ] array.includes(2), // true array.find(e => e == 2) // 2)// view does not...
View ArticleAnswer by Zia for How do I check if an array includes a value in JavaScript?
This is how you can do.const arr = [1, 2, 3, 4, 5];console.log(arr.includes(3)); // trueconsole.log(arr.includes(6)); // false
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