How do I remove the first character of a string?

Removing the first character from a string is a common operation in programming. Here's how you can achieve it in various languages:

1. JavaScript:

- You can use the substring() or slice() method to extract a portion of the string, starting from the second character (index 1). Alternatively, you can use shift() on an array if you convert the string to it.

Example using substring():

let str = "Hello";
let newStr = str.substring(1); // newStr will be "ello"
console.log(newStr);

Example using slice():

let str = "World";
let newStr = str.slice(1); // newStr will be "orld"
console.log(newStr);

Example using shift() (after converting to array):

let str = "Example";
let arr = Array.from(str);
arr.shift();
let newStr = arr.join(''); // newStr will be "xample"
console.log(newStr);

2. Python:

- Python's string slicing makes this simple: use [1:] to get all characters after the first one.

str = "Python"
new_str = str[1:] # new_str will be "ython"
print(new_str)

3. Java:

- Use the substring() method with an index of 1 to achieve the same result.

String str = "Java";
String newStr = str.substring(1); // newStr will be "ava"
System.out.println(newStr);

4. C#:

- Similar to Java, use Substring() method.

string str = "CSharp";
string newStr = str.Substring(1); // newStr will be "Sharp"
Console.WriteLine(newStr);

5. PHP:

- Use substr() function starting from index 1.

$str = "PHP";
$newStr = substr($str, 1); // $newStr will be "HP"
echo $newStr;

In all of these examples, the original string remains unchanged. The methods return a new string with the first character removed.

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