# JavaScript: Create a new array taking the middle elements of the two arrays of integer and each length 3

## JavaScript Basic: Exercise-75 with Solution

Write a JavaScript program to create a new array taking the middle elements of the two arrays of integer and each length 3.

Pictorial Presentation:

Sample Solution:

HTML Code:

``````<!DOCTYPE html>
<html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JavaScript program to create a new array taking the middle elements of the two arrays of integer and each length 3.</title>
<body>

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

JavaScript Code:

``````function middle_elements(a, b)
{
var new_array = []
new_array.push(a[1], b[1]);

return new_array;
}
console.log(middle_elements([1, 2, 3], [1, 5, 6]));
console.log(middle_elements([3, 3, 3], [2, 8, 0]));
console.log(middle_elements([4, 2, 7], [2, 4, 5]));
```
```

Sample Output:

```[2,5]
[3,8]
[2,4]
```

Flowchart:

ES6 Version:

``````function middle_elements(a, b)
{
const new_array = [];
new_array.push(a[1], b[1]);

return new_array;
}
console.log(middle_elements([1, 2, 3], [1, 5, 6]));
console.log(middle_elements([3, 3, 3], [2, 8, 0]));
console.log(middle_elements([4, 2, 7], [2, 4, 5]));
``````

Live Demo:

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## JavaScript: Tips of the Day

Converts a string to title case

Example:

```const toTitleCase = str =>
str
.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
.map(x => x.charAt(0).toUpperCase() + x.slice(1))
.join(' ');
console.log(toTitleCase('some_database_field_name')); // 'Some Database Field Name'
console.log(toTitleCase('Some label that needs to be title-cased')); // 'Some Label That Needs To Be Title Cased'
console.log(toTitleCase('some-package-name')); // 'Some Package Name'
console.log(toTitleCase('some-mixed_string with spaces_underscores-and-hyphens')); // 'Some Mixed String With Spaces Underscores And Hyphens'
```

Output:

```"Some Database Field Name"
"Some Label That Needs To Be Title Cased"
"Some Package Name"
"Some Mixed String With Spaces Underscores And Hyphens"
```