From http://docs.jsonata.org/boolean-functions.html
$boolean(arg)
Casts the argument to a Boolean using the following rules:
Boolean: unchanged string: empty false string: non-empty true number: 0 false
number: non-zero true null: false array: empty false array: contains a member
that casts to true true array: all members cast to false false object: empty
false object: non-empty true function: (functions are not currently
supported) false
http://docs.jsonata.org/numeric-functions.html
$ceil(number)
Returns the value of number rounded up to the nearest integer that is greater
than or equal to number.
From https://docs.jsonata.org/array-functions#distinct
$distinct(array)
Returns an array containing all the values from the array parameter,
but with any duplicates removed.
From https://docs.jsonata.org/object-functions#each
$each(object,function($value, $key)
Returns an array containing the values return by the function when applied to
each key/value pair in the object.
From http://docs.jsonata.org/string-functions.html:
Signature: $eval(expr [, context])
Parses and evaluates the string expr which contains literal JSON or a JSONata expression using the current context as the context for evaluation.
From http://docs.jsonata.org/higher-order-functions#filter
Signature: $filter(array, function)
Returns an array containing only the values in the array parameter that
satisfy the function predicate (i.e.
http://docs.jsonata.org/numeric-functions.html
$floor(number)
Returns the value of number rounded down to the nearest integer that is
smaller or equal to number.
From http://docs.jsonata.org/string-functions.html:
$formatBase(number [, radix])
Casts the number to a string and formats it to an integer represented in the
number base specified by the radix argument.
From http://docs.jsonata.org/string-functions.html:
$formatNumber(number, picture [, options])
Casts the number to a string and formats it to a decimal representation as
specified by the picture string.
From http://docs.jsonata.org/string-functions.html:
$fromMillis(number)
Convert a number representing milliseconds since the Unix Epoch (1 January,
1970 UTC) to a timestamp string in the ISO 8601 format.
From http://docs.jsonata.org/string-functions.html:
$join(array[, separator])
Joins an array of component strings into a single concatenated string with
each component string separated by the optional separator parameter.
From http://docs.jsonata.org/higher-order-functions#map
Signature: $map(array, function)
Returns an array containing the results of applying the function parameter to
each value in the array parameter.
This class provides an empty implementation of MappingExpressionListener,
which can be extended to create a listener which only needs to handle a subset
of the available methods.
This class provides an empty implementation of MappingExpressionVisitor,
which can be extended to create a visitor which only needs to handle a subset
of the available methods.
From http://docs.jsonata.org/string-functions.html:
$match(str, pattern [, limit])
Finds occurrences of pattern within str and reports them with their index and
group.
http://docs.jsonata.org/numeric-functions.html
Casts the arg parameter to a number using the following casting rules:
- Numbers are unchanged - Strings that contain a sequence of characters that
represent a legal JSON number are converted to that number - All other values
cause an error to be thrown.
From http://docs.jsonata.org/string-functions.html:
$pad(str, width [, char])
Returns a copy of the string str with extra padding, if necessary, so that
its total number of characters is at least the absolute value of the width
parameter.
This class provides an empty implementation of PathExpressionParserListener,
which can be extended to create a listener which only needs to handle a subset
of the available methods.
This class provides an empty implementation of PathExpressionParserVisitor,
which can be extended to create a visitor which only needs to handle a subset
of the available methods.
http://docs.jsonata.org/numeric-functions.html
$random()
Returns a pseudo random number greater than or equal to zero and less than
one (0 ≤ n < 1)
Examples
$random()==0.7973541067127 $random()==0.4029142127028 $random() ==
0.6558078550072
From http://docs.jsonata.org/higher-order-functions#reduce
Signature: $reduce(array, function [, init])
Returns an aggregated value derived from applying the function parameter
successively to each value in array in combination with the result of the
previous application of the function.
From http://docs.jsonata.org/string-functions.html:
$replace(str, pattern, replacement [, limit])
Finds occurrences of pattern within str and replaces them with replacement.
http://docs.jsonata.org/numeric-functions.html
$round(number [, precision])
Returns the value of the number parameter rounded to the number of decimal
places specified by the optional precision parameter.
From http://docs.jsonata.org/object-functions.html
$spread(object)
Splits an object containing key/value pairs into an array of objects, each of
which has a single key/value pair from the input object.
From http://docs.jsonata.org/object-functions.html
$spread(object)
Splits an object containing key/value pairs into an array of objects, each of
which has a single key/value pair from the input object.
From http://docs.jsonata.org/string-functions.html:
$string(arg)
Casts the arg parameter to a string using the following casting rules
Strings are unchanged Functions are converted to an empty string Numeric
infinity and NaN throw an error because they cannot be represented as a JSON
number All other values are converted to a JSON string using the
JSON.stringify function If arg is not specified (i.e.
From http://docs.jsonata.org/string-functions.html:
$substringAfter(str, chars)
Returns the substring after the first occurrence of the character sequence
chars in str.
From http://docs.jsonata.org/string-functions.html:
$substringBefore(str, chars)
Returns the substring before the first occurrence of the character sequence
chars in str.
http://docs.jsonata.org/numeric-functions.html
$toMillis(timestamp)
Convert a timestamp string in the ISO 8601 format to the number of
milliseconds since the Unix Epoch (1 January, 1970 UTC) as a number.
From http://docs.jsonata.org/string-functions.html:
$trim(str)
Normalizes and trims all whitespace characters in str by applying the
following steps:
* All tabs, carriage returns, and line feeds are replaced with spaces.
From http://docs.jsonata.org/string-functions.html:
$trim(str)
Normalizes and trims all whitespace characters in str by applying the
following steps:
* All tabs, carriage returns, and line feeds are replaced with spaces.