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Built in Functions - String

A function is a set of code, that takes a finite number of input and optionally returns a value. Functions that operate on string expression are classified as string functions, they include functions for finding the length of a given text, remove certain words from a text etc.

In all the given functions, the original string is not changed by the function, only the return value is affected by these functions.

Function Description
<string1>.contains(<string2>) Returns true if string2 is a substring of string1, otherwise false.
<string1>.endsWith(<string2>) Returns true if string1 ends with string2
<string1>.startsWith(<string2>) Returns true if string1 starts with string2
<string>.remove(<substring>) Removes the substring from the given string.
<string>.removeFirstOccurence(<substring>) Removes the first occurence of the substring from the given string..
<string>.removeLastOccurence(<substring>) Removes the last occurence of the second argument string from the first argument string.
<string>.getSuffix(<substring>) Returns the string after the specified substring.
<string>.getPrefix(<substring>) Returns the string before the specified substring.
<string>.toUpperCase() Convert the string to uppercase.
<string>.toLowerCase() Convert the string to lowercase.
<string>.getAlphaNumeric() Returns only the alphanumeric present in the specified string.
<string>.getAlpha() Returns only the alphabets present in the specified string.
<string>.removeAllAlphaNumeric() Remove all the alphanumeric present in the specified string.
<string>.removeAllAlpha() Remove all the alphabets present in the specified string.
<string>.length() Returns the length of the given string as an integer value.
<string>.getOccurence
Count(<substring>)
Returns the number of times a substring is present in the given string.
<string>.indexOf(<substring>) Returns the index of the first occurence of the substring in the given string
<string>.lastIndexOf(<substring>) Returns the index of the last occurence of the substring in the given string
<string>.substring(<
<s.index>, <e.index>)
Returns the string from the specified startindex to the endindex. 
<string>.trim() Removes any leading and trailing space
from a string
<string1>.equalsIgnoreCase
<string2>
Returns true if <string1> equals <string2>.
<expression>.toString Converts any type of expression to string.
Refer the behavior of toString() when applied to date/time
value.
<string>.matches
(<regular expression>)
Returns true if the given string matches regular expression given as argument.
<string>.replaceAll
(<searchString>,
<replacementString>
,false)
)
Replaces all occurrence of the string that matches the given <searchString> expression with the given <replacementString>.

<string>.replaceFirst
(<searchString>,
<replacementString>,
false)
Replaces the first occurrence of the string that matches the given <searchString> expression with the given <replacementString>.


leftpad(str)

Returns the input string with whitespace characters padded to the left of the string. 
rightpad(str)  Returns the input string with whitespace characters padded to the right of the string.

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