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JavaScript: take every nth Element of Array and display a fixed number of values?
For this, you can use for loop along with if condition. Let’s say the following is our array −
var numbers = [1, 2, 34, 56, 78, 90, 100, 110, 40, 70, 67, 77, 34, 68, 89, 91, 94];
We have set a counter to set a value. This value is set to display a fixed number of values −
var counter = 6;
The above shows the result will be 6 values.
Example
Following is the code −
var numbers = [1, 2, 34, 56, 78, 90, 100, 110, 40, 70, 67, 77, 34, 68, 89, 91, 94]; var counter = 6; var newNumbers = []; var start = 0; for (var index = 0; index < numbers.length; index++) { if (index % 2 != 0) { start++; if (start <= counter) { newNumbers.push(numbers[index]); } } } console.log(newNumbers);
To run the above program, you need to use the following command −
node fileName.js.
Here, my file name is demo231.js
Output
The output is as follows −
PS C:\Users\Amit\JavaScript-code> node demo231.js [ 2, 56, 90, 110, 70, 77 ]
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