How can I replace "NaN" with a space in an array?
let numbers = [1, 2, 3, NaN];
let result = numbers.map(num => isNaN(num) ? " " : num);
console.log(result);
I would like the output to be [1, 2, 3, " "]
How can I replace "NaN" with a space in an array?
let numbers = [1, 2, 3, NaN];
let result = numbers.map(num => isNaN(num) ? " " : num);
console.log(result);
I would like the output to be [1, 2, 3, " "]
One way to achieve this is by using the following code snippet:
result.map(val => isNaN(val) ? ' ' : val);
Check for NaN using the isNaN() method within a forEach loop.
var numbers = [1, 2, 3, NaN];
filteredNumbers = [];
numbers.forEach((num) => !isNaN(num) ? filteredNumbers.push(num) : filteredNumbers.push(''));
console.log(filteredNumbers);Alternatively, you can achieve the same result using the map method.
var numbers = [1, 2, 3, NaN];
console.log(numbers.map((num) => isNaN(num) ? "" : num));To identify elements with the value of `NaN`, you can utilize the isNaN() function.
var sampleArray = [8, NaN, 6, "NaN"];
for (var j in sampleArray)
if (isNaN(sampleArray[j]))
sampleArray[j] = "";
console.log(sampleArray);
Implement map() method:
var numbers = [9, 5, 7, 1, 'NaN']
numbers = numbers.map(num => isNaN(num)?' ':num)
console.log(numbers)One option is to utilize the findIndex method. Check out the sample code below:
var data = [5, 8, 10, NaN];
var index = data.findIndex(Number.isNaN);
data[index] = "empty";
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