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• Clelalempty Spaces The Blog Examples
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4 Effective Ways to Remove Character from String using JavaScript

Looking to remove the character from string in JavaScript? Let’s discuss remove method details in this post.

Contents

Using substring() method

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JavaScript substring() method retrieves the characters between two indexes and returns a new substring.

Two indexes are nothing but startindex and endindex.

Let’s try to remove the first character from the string using the substring method in the below example.

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Now let’s remove the last character from the string using the substring method in the below example.

the length property is used to determine the last element position.

As per the output above, you can see that specified first and last characters are removed from the original string.

With substr() method

substr() method will retrieve a part of the string for the given specified index for start and end position.

Let’s remove the first character from string using substr function in the below example.

Now let’s see how to remove the last character from string using substr function in the below example.

using below JavaScript code, we can also remove whitespace character from a string.

As you can see from the above function, in the input string value there is whitespace at the end of the string which is successfully removed in the final output.

Using slice() method

slice() method retrieves the text from a string and delivers a new string.

Let’s see how to remove the first character from the string using the slice method.

Now let’s remove the last character from string using the slice method.

Using replace() method

replace() method is used to replace a specified character with the desired character.

This method accepts two arguments or parameters.

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The first argument is the current character to be replaced and the second argument is the new character which is to be replaced on.

Let’s see how to replace the first character in a string using the replace function.

Now let’s replace the last character in JavaScript string using replace function.

Now let’s replace specified character in a string using the replace method.

Also we can apply regular expression(regex)in the replace method to replace any complex character or special character in the string.

Regular expressions(regex) are also useful when dealing with a line break, trailing whitespace, or any complex scenarios.

Using above JavaScript methods, we can also remove characters on string array, line break, trailing whitespace, empty string, Unicode character, double quotes, extra spaces, char, parenthesis, backslash

We can remove multiple characters by giving the specified index for start and end position.

To conclude this tutorial, we covered various types of implementation to remove a character from string using JavaScript.

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In this simple solution, I cover one method toErase Empty Space on a Hard Drive. By default when you send items to theRecycle Bin, Delete Email, Clear Browsing History, Etc, the information that occupied that space on your Hard Drive can still be recovered until that space is overwritten several times with new data.

You can easily prevent deleted data from being recovered by using a tool such as Eraser to Wipe the Empty Space on your Hard Drive and make the deleted data unrecoverable. Eraser does this by overwriting this empty space several times using various techniques.

Eraser Official Home Page: http://eraser.heidi.ie

How to Wipe Empty Space on a Hard Drive:

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Note: In Windows Vista/7 you must right click eraser.exe and select to “Run as Administrator”

1. Download Portable Eraser (unzip, then run eraser.exe)
2. Click File > New Task
   
3. Select to “Erase Unused Space on drive“, Make sure the correct drive is selected, and Click OK to proceed.
   
4. Now simply Right Click the Task from the Window, and Select Run
   

   Once Eraser has finished, the empty space on your select Drive should be irrecoverable.