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.
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.
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.