General functions

general functions let you fine tune your mapping in a for example, you can select or leave out items in an array or apply conditional criteria to your mapping functions the following functions are available in the general functions tab in equal equal(value; value) compares values to see if they are equal set set (object; path; value) sets or adds a value at a specific location in an array or object, leaving the rest of the structure unchanged set(user;name;john) set(user;address city;prague) get get (object or array; path) returns the value path of an object or array to access nested objects, use dot notation the first item in an array is index 1 get(array;1+1) get(array;5 raw name) get(object;raw name) get(object;raw name sub raw name) if if (expression; value1; value2) returns value 1 if the expression is evaluated to be true otherwise, it returns value 2 if(1=1;a;b) \= a if(1=2;a;b) \= b ifempty ifempty (value1; value2) returns value 1 if this value is not empty otherwise, it returns value 2 ifempty(a;b) \= a ifempty(unknown;b) \= b ifempty("";b) \= b switch switch (expression; value1; result1; \[value2; result2; ]; \[else]) evaluates one value (called the expression) against a list of values, and returns the result corresponding to the first matching value switch(b;a;1;b;2;c;3) \= 2 switch(c;a;1;b;2;c;3) \= 3 switch(x;a;1;b;2;c;3;4) \= 4 omit omit (collection; key1; \[key2; ]) removes elements with the given keys from a collection returns a collection with the remaining elements useful when you want to pass a collection to an api, which expects an exact number of elements in the collection using this function, you can make sure your collection meets the requirements of the api pick pick (collection; key1; \[key2; ]) picks elements with the given keys from a collection returns a collection that contains only the picked elements useful when you want to pass a collection to an api, which expects an exact number of elements in the collection using this function, you can make sure your collection meets the requirements of the api keywords the following keywords are available in the general functions tab in erase the erase pill inherits the parameter type of the item it replaces and provides correct error handling of the empty value a string or number with an erase pill results in a null value an array with an erase pill results in \[] a collection with an erase pill results in {}