String

String class is used for processing a general string. If a string is substituted for a variables, it is stored as a String Class.

length

Return the length of the string.

charAt(pos)

Returns the character at index.

charCodeAt(pos)

Returns the Unicode value.

concat([string1 [, string2 [, ...]]])

Joins Strings

fromCharCode([char0 [, char1 [, ...]]]) 

Creates a string from the supplied unicode integers.

indexOf(searchString [, position])

Finds position of a string.

lastIndexOf(searchString [, position])

Finds position of a string from last.

localeCompare(that)

Compares two strings according to a locale rules.

match(regexp)

Does a pattern search on a string. "regexp" encloses by "/" such as "match (/abc/)". If "i" is finally attached such as "match (/abc/i)", it does not differentiate a uppercase and a lowercase. If "g" is finally attached such as "match (/abc/g)", all the congruous strings are returned by comma separated values. The string will be returned if there is a string which was congruous with condition.

slice(start, end)

Extracts a substring starting at the index.

split(separator [, limit])

Split a string into an array of substrings and returns the new array.

substring(start, end)

Extracts the characters from a string, between two specified indices.

toLowerCase()

Converts a string to lowercase letters.

toLocaleLowerCase()

Converts a string to lowercase letters according to a locale rules.

toUpperCase()

Converts a string to uppercase letters.

toLocaleUpperCase()

Converts a string to uppercase letters according to a locale rules.