# JavaScript: Get the amount of days of a year

## JavaScript Datetime: Exercise-14 with Solution

Write a JavaScript function to get the amount of days of a year.

Test Data :
console.log(days_of_a_year(2015));
365
console.log(days_of_a_year(2016));
366

Sample Solution:-

HTML Code:

``````<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>JavaScript function to get the amount of days of a year</title>
<body>

</body>
</html>
```
```

JavaScript Code:

``````function days_of_a_year(year)
{

return isLeapYear(year) ? 366 : 365;
}

function isLeapYear(year) {
return year % 400 === 0 || (year % 100 !== 0 && year % 4 === 0);
}

console.log(days_of_a_year(2015));
console.log(days_of_a_year(2016));
```
```

Sample Output:

```365
366
```

Flowchart:

Live Demo:

See the Pen JavaScript - Get the amount of days of a year-date-ex- 14 by w3resource (@w3resource) on CodePen.

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## JavaScript: Tips of the Day

Convert tabs to spaces, where each tab corresponds to count spaces

Example:

```const tips_expandTabs = (str, count) => str.replace(/\t/g, ' '.repeat(count));
console.log(tips_expandTabs('\t\tw3resource', 4));
```

Output:

```"        w3resource"
```