Returns a new array comprised of this array joined with the arrays or values provided as arguments. The concat function also works with Uint8 arrays.

This is similar to the JavaScript concat.

Expression: $head.concat($middle,$tail)

Where $head, $middle, and $tail are all arrays.

Result: A new array of the target path name containing all three arrays.

Returns a new array containing only the elements for which the given callback returned true.

This is similar to the JavaScript Array.filter() method.

Expression: $myarray.filter(x => x > 5)

where $myarray is a normal array

Result: A new array containing numbers greater than five.

To remove duplicate entries in an array:

Expression: $myarray.filter((item, pos, a) => a.indexOf(item) == pos)

where $myarray is a normal array containing ["Fred", "Wilma", "Fred", "Betty", "Fred", "Barney"]

Result: A new array containing [Fred, Wilma, Betty, Barney].

Returns the first element found for which the given callback returns true.
This is similar to the JavaScript Array.find() method.

Expression: $myarray.find(x => x > 5)

where $myarray is a normal array

Result: The first element whose value is greater than five.

Returns the index of the first element for which the given callback returns true. If no match is found, -1 is returned.
This is similar to the JavaScript Array.findIndex() method.

Expression: $myarray.findIndex(x => x > 5)

where $myarray is a normal array

Result: The index of the first element whose value is greater than five.

Returns the first index at which a given element can be found in the array or -1 if it is not present.

This is similar to the JavaScript indexOf.

Expression: $Array.indexOf(0)

where $Array contains [0, 2, 4, 6, 8]

Result: 0

Expression: $Array.indexOf(1)

where $Array contains [0, 2, 4, 6, 8]

Result: -1

Returns the last index at which a given element can be found in the array.

This is similar to the JavaScript lastIndexOf.

Expression: $first.lastIndexOf(0)

where $first contains [0, 2, 4, 6, 8]

Result: 0

The number of elements in an array.

This is similar to the JavaScript length.

Expression: $array.length

Result: A number.

Joins all elements of an array into a string.

This is similar to the JavaScript join.

where optseparator is an optional string to separate the elements. If omitted, a comma is used.

Expression: ["SnapLogic", "Data", "Integration"].join(" ")

Result: the string SnapLogic Data Integration

Returns a new array with the values transformed by the given callback.
This is similar to the JavaScript Array.map() method.

Expression: $myarray.map(x => x * 10)

where $myarray is an array

Result: A new array where the elements have been multiplied by ten.

Removes the last element from an array and returns that element.

This is similar to the JavaScript pop.

Expression: $Array.pop()

Result: The last element of the array.

Adds one or more elements to the end of an array and returns the new length of the array.

This is similar to the JavaScript push.

Expression: $Array.push("Mobile", "Email")

Result: Mobile and Email will be added to that array and the new length of the array is returned.

Reduces an array to a single value using the given callback. For each element in the array, the callback is called with four arguments: the accumulated value (the result from previous calls or the initialValue), the value of the current element, the index of the current element, and the array itself.  The exact behavior will change based on whether an initial value is provided.  If no value is provided, the callback is called with the first element in the array as the accumulated value and the second element as the current value.  If an initial value is provided, then the first call uses the initial value as the accumulated value and the first element as the current value.  In general, it is safest to provide an initial value.
This is similar to the JavaScript Array.reduce() method.

Expression: $myarray.reduce((accum, currentValue) => accum + currentValue, 0)

where $myarray is an array

Result: The sum of all of the elements in the array.

Like the reduce() method, except the elements are traversed right-to-left instead of left-to-right.
This is similar to the JavaScript Array.reduceRight() method.

Expression: $myarray.reduceRight((accum, currentValue) => accum + currentValue, 0)

where $myarray is an array

Result: Builds a string of the elements in reverse order.

Transposes the elements of the calling array object in place, mutating the array, and returning a reference to the array.

This is similar to the JavaScript reverse.

Expression: $Array.reverse

Result: Returns the array in reverse order.

Removes the first element from an array and returns that element. This method changes the length of the array.

This is similar to the JavaScript shift.

Expression: $Array.shift()

Result: The first element from an array.

Returns a shallow copy of an array containing copies of the original elements.

This is similar to the JavaScript slice.

Expression: $Array.slice(1,3)

where $Array contains [0, 2, 4, 6, 8]

Result: [2,4]

Returns a lexicographically and case-sensitively sorted array, by default. You can leverage other attributes like .compare(), .foreach() to customize these outputs.

This is similar to the JavaScript sort.

Consider an array:

list = [45, 7, 23, 88, 12];

Expression: $list.sort(); //Default sort order is ascending order of the strings

Result: [12, 23, 45, 7, 88];

Expression: $list.sort((a, b) => a - b); //Ascending order of the numbers

Result: [7, 12, 23, 45, 88];

Expression: $list.sort((a, b) => b - a); //Descending order of the numbers

Result: [88, 45, 23, 12, 7];

Consider an array: 

colors = ["Blue", "beige", "Maroon", "cyan"];

Expression: $colors.sort() //Case-sensitive sorting, by default

Result: ['Blue', 'Maroon', 'beige', 'cyan']

Expression: fruits.sort((a, b) => a.toLowerCase().localeCompare(b.toLowerCase())); //Case-insensitive sorting

Result: ['beige', 'Blue', 'cyan', 'Maroon']

Consider an array of objects: 

employees = [ { name: "John", age: 28 }, { name: "Alice", age: 35 }, { name: "Bob", age: 23 } ];

Expression: $employees.sort((a, b) => a.age - b.age) // Sort by age (ascending)

Result: [ { name: "Bob", age: 23 }, { name: "John", age: 28 }, { name: "Alice", age: 35 } ];

Expression: $employees.sort((a, b) => a.name.localeCompare(b.name)) // Sort by name (alphabetical order)

Result: [ { name: "Alice", age: 35 }, { name: "Bob", age: 23 }, { name: "John", age: 28 } ];

Lets you remove and insert elements in an array and returns an array containing the elements removed

This is similar to the JavaScript splice.

where:

• begin is the index where to start changing the array

• digit is the number of items to remove

• item is the items to insert

For an array, $Contacts, defined as:

Expression: $Contacts.splice(2,0,'Business')

Result: Removes nothing, but inserts "Business" after "Last".

Expression: $Contacts.splice(4,1,'State')

Result: Removes "Zip", inserts "State", returns "Zip" in the output view.

Performs arrow functions on the values of the array to generate the key/value pair in the object returned by the callback, and, if given, a second callback.

Expression: [1,2,3,4].toObject(x => x, x => x * x)

Result: {“1”:1, “2”:4, “3”:9, “4”:16}

Expression: ['zero', 'one', 'two'].toObject((x, index) => index, x => x.contains('two'))
Result: {"0": false, "1": false, "2": true}

Returns one string containing each array element separated by commas.

This is similar to the JavaScript toString.

Expression: $Array.toString()

Result: Returns a string containing a comma-separated list of the array elements.

Creates a new Uint8 array from a variable number of arguments.

This is similar to the JavaScript TypedArray.of().

Expression: Uint8Array.Of()

Result: [ 0 ]

Creates an empty array.

Expression: Uint8Array.of(1,2,3,4)

Result: [ 1, 2, 3, 4 ]

Returns a new subarray from an Uint8 array, where the arguments are the indexes begin and end offsets.

This is similar to the JavaScript TypedArray.subarray().

Expression: Uint8Array.subarray (1,3)

Where Uint8Array is [1, 2, 3, 4]

Result: [2, 3]

Returns the first index at which a given element is present. If the element is not present, the result is -1. 

This is similar to the JavaScript TypedArray.indexOf().

Expression: uint8.indexOf(8)

Where Uint8Array is [1, 2, 3, 4, 5]

Result: -1

Expression: uint8.indexOf(3)

Where Uint8Array is [1, 2, 3, 4, 5, 6, 7, 8]

Result: 2

Returns the last index at which a given element is present. If the element is not present, the result is -1.

This is similar to the JavaScript lastIndexOf().

Expression: Uint8Array.lastindexOf(30)