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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.

    FunctionDescription
    <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>.toStringConverts 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,size)

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

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