How can I convert a string to an uppercase in JavaScript?Rashid D
In JavaScript, you can convert a string to uppercase using thetoUpperCase()
method. Here's how you can achieve this:
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const string = "hello world"; const uppercaseString = string.toUpperCase();
In this example,string.toUpperCase()
converts thestring
to uppercase and assigns the result to theuppercaseString
variable. The resulting value will be"HELLO WORLD"
.
ThetoUpperCase()
method converts all the characters in the string to their uppercase equivalents according to the Unicode standard. It does not modify the original string but returns a new string with the uppercase characters.
If you want to convert only specific parts of a string to uppercase, you can use additional methods likeslice()
or regular expressions. For example:
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const string = "hello world"; const uppercaseFirstLetter = string[0].toUpperCase() + string.slice(1);
Here,string[0].toUpperCase()
converts the first character of the string to uppercase, andstring.slice(1)
extracts the remaining characters. By concatenating the two parts, you get the result with the first letter capitalized:"Hello world"
.
Keep in mind that thetoUpperCase()
method is based on the Unicode standard, so the behavior may vary for characters from different languages or scripts.
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