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JavaScript String Object

The String object is used to work with text.

Examples

The length property
This example returns the number of characters in a string.

The fontcolor() method
This example returns a string in a specified color.

The indexOf() method
This example tests if a string contains a specified text and returns the position of where the text was found.

The match() method
This example tests if a string contains a specified text and returns the text if it was found.

The substr() and substring() methods
This example returns a specified part of a string.

The toLowerCase() and toUpperCase() methods
This example converts a string to lowercase and uppercase.

String object

The String object is used to work with text.

The String object's properties and methods are described below:

NN: Netscape, IE: Internet Explorer

Properties

Syntax: object.property_name

Property	Description	NN	IE
constructor		4	4
length	Returns the number of characters in a string	2	3

Methods

Syntax: object.method_name()

Method	Description	NN	IE
anchor("anchorname")	Returns a string as an anchor	2	3
big()	Returns a string in big text	2	3
blink()	Returns a string blinking	2
bold()	Returns a string in bold	2	3
charAt(index)	Returns the character at a specified position	2	3
charCodeAt(i)	Returns the Unicode of the character at a specified position	4	4
concat()	Returns two concatenated strings	4	4
fixed()	Returns a string as teletype	2	3
fontcolor()	Returns a string in a specified color	2	3
fontsize()	Returns a string in a specified size	2	3
fromCharCode()	Returns the character value of a Unicode	4	4
indexOf()	Returns the position of the first occurrence of a specified string inside another string. Returns -1 if it never occurs	2	3
italics()	Returns a string in italic	2	3
lastIndexOf()	Returns the position of the first occurrence of a specified string inside another string. Returns -1 if it never occurs. Note: This method starts from the right and moves left!	2	3
link()	Returns a string as a hyperlink	2	3
match()	Similar to indexOf and lastIndexOf, but this method returns the specified string, or "null", instead of a numeric value	4	4
replace()	Replaces some specified characters with some new specified characters	4	4
search()	Returns an integer if the string contains some specified characters, if not it returns -1	4	4
slice()	Returns a string containing a specified character index	4	4
small()	Returns a string as small text	2	3
split()	Splits a string into an array of strings	4	4
strike()	Returns a string strikethrough	2	3
sub()	Returns a string as subscript	2	3
substr()	Returns the specified characters. 14,7 returns 7 characters, from the 14th character (starts at 0)	4	4
substring()	Returns the specified characters. 7,14 returns all characters from the 7th up to but not including the 14th (starts at 0)	2	3
sup()	Returns a string as superscript	2	3
toLowerCase()	Converts a string to lower case	2	3
toUpperCase()	Converts a string to upper case	2	3