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String In JavaScript
A JavaScript string simply stores a series of characters like "prasun".
Creating a String object
Syntax :
var val = new String(string);
String Properties:
Property
Description
constructor
Returns a reference to the String function
length
Returns the length of the string.
prototype
The prototype property allows you to add properties and methods to an object.
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String Methods :
Property
Description
indexOf()
Returns the index within the calling String object of the first occurrence of the specified value
concat()
Combines the text of two strings and returns a new string.
charAt()
Returns the character at the specified index.
charCodeAt()
Returns a number indicating the Unicode value
match()
match a regular expression against a string.
replace()
Searches a string for a value and returns a new string with the value replaced
localeCompare()
Compares two strings in the current locale
slice()
Extracts a section of a string and returns a new string.
substring()
Returns the characters in a string between two indexes into the string.
toString()
Returns a string representing the specified object.
toLowerCase()
Returns the calling string value converted to lower case.
toUpperCase()
Returns the calling string value converted to uppercase.
valueOf()
Returns the primitive value of a String object
split()
Splits a string into an array of substrings
String HTML wrappers :
Method
Description
blink()
Creates a string to blink as if it were in a <blink> tag.
bold()
Creates a string to be displayed as bold as if it were in a <b> tag.
anchor()
Creates an HTML anchor that is used as a hypertext target.
fontcolor()
Causes a string to be displayed in the specified color as if it were in a <font color="color"> tag.
fixed()
Causes a string to be displayed in fixed-pitch font as if it were in a <tt> tag
link()
Creates an HTML hypertext link that requests another URL.
sub()
Causes a string to be displayed as a subscript, as if it were in a <sub> tag
sup()
Causes a string to be displayed as a superscript, as if it were in a <sup> tag
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