IC Commons, a package of Motoko utility classes for the classes.
func encode(value: Text) : TextEncodes string by Base64.
func crc32(value: [Nat8]) : [Nat8]Encodes an array of Nat8 by CRC32, and return the encoded array.
func ofBlob(blob: Blob) : Nat32Encodes Blob convert into Nat32 by CRC32.
func ofArray(arr : [Nat8]) : Nat32Encodes an array of Nat8 convert into Nat32 by CRC32.
func encode(array: [Nat8]) : TextEncodes an array of Nat8 by Hex, and return the encoded array.
func decode(text: Text) : async [Nat8]Decodes string by Hex, and return the decoded Nat8 array.
func toHex(_data: Text) : TextEncodes string by Hex, and return the encoded string.
func bitshiftLeft(x: Int, y: Int) : IntThe left shift operation, shifts x by y of bits to the left.
func bitshiftRight(x: Int, y: Int) : IntThe right shift operation, shifts x by y of bits to the right.
func toIntArr(x: Int, bit: Nat) : [Int64]Converts x into a array of Int64 by bit number of bits.
func bitOperation(x: Int, y: Int, operationFunc: (x1: Int64, y1: Int64) -> Int64) : IntPerforms bitwise operation on x and y via operationFunc function, and return the calculated result.
func bitand(x: Int, y: Int) : IntBitwise AND operation on x and y.
func bitor(x: Int, y: Int) : IntBitwise OR operation on x and y.
func bitnot(x: Int) : IntBitwise NOT operation on x and y.
func toNat(x: Int) : NatConverts the Int type of x into Nat.
func bitshiftLeft(x: Nat, y: Nat) : NatThe left shift operation, shifts x by y of bits to the left.
func bitshiftRight(x: Nat, y: Nat) : NatThe right shift operation, shifts x by y of bits to the right.
func toIntArr(x: Nat, bit: Nat) : [Nat64]Converts x into a array of Nat64 by bit number of bits.
func bitOperation(x: Nat, y: Nat, operationFunc: (x1: Nat64, y1: Nat64) -> Int64) : NatPerforms bitwise operation on x and y via operationFunc function, and return the calculated result.
func bitand(x: Nat, y: Nat) : NatBitwise AND operation on x and y.
func bitor(x: Nat, y: Nat) : NatBitwise OR operation on x and y.
func bitnot(x: Nat) : NatBitwise NOT operation on x and y.
func toInt(x: Nat) : IntConverts the Nat type of x into Int.
func nat32ToNat8Arr(nat: Nat32) : [Nat8]Converts nat of Nat32 into an array of Nat8.
func gt(x: Nat, y: Nat) : NatCompares x and y. If x greater than y, return 1, otherwise return 0.
func lt(x: Nat, y: Nat) : NatCompares x and y. If x lower than y, return 1, otherwise return 0.
func isZero(v: Nat) : BoolChecks if the v is zero.
func encode(array: [Nat8]) : TextEncodes an array of Nat8 by Base64, return the encoded string.
func fromInt(v: Int) : TextConverts an Int number into string.
func fromNat(v: Nat) : TextConverts an Nat number into string.
func fromNat8(u8: Nat8) : TextConverts an Nat8 number into string.
func toInt(txt: Text) : IntConverts a string into Int number.
func toNat(text: Text) : NatConverts a string into Nat number.
func toUpperCase(text: Text) : TextReturn the calling string value converted to uppercase.
func equalsIgnoreCase(t1: Text, t2: Text) : BoolCompares two strings without case sensitive.
func extractText(t: Text, i: Nat, j: Nat) : TextReturns the part of the string t between the start i and end j indexes.
func toArray(t: Text) : [Text]Divides a string t into each character of the string, puts these characters into an array, and returns the array.
func fromArray(array: [Text]) : TextReturns a new string by concatenating all of the elements in an array.
func completionZero(_t: Text, d: DirectionType, n: Nat) : TextFills vacated bits with zeros before/after string _t by DirectionType type. The n is the length of the string which has been filled vacated bits with zeros
func binaryToDecimal(_num: Nat32) : TextConverts a Nat32 number into a binary string.
func scaleToDecimal(number: Text, scale: Nat) : NatConverts a scale-ary string into a Nat number.
func hexToNumber(_t: Text) : NatConverts a Hex string into a Nat number.
func arrayContains<T>(arr: [T], item: T, equal: (T, T) -> Bool) : BoolDetermines whether an array matchs a certain value among its entries, returning true or false as "equal" function returns.
func listRemove<T>(list: List.List<T>, item: T, equal: (T, T) -> Bool) : List.List<T>Removes matched item in the list, returning the list which removed item.
func arrayRemove<T>(arr: [T], item: T, equal: (T, T) -> Bool) : [T]Removes matched element in the array, returning the array which removed element.
func listRange<T>(list: List.List<T>, offset: Nat, limit: Nat) : List.List<T>Returns a portion of the list, starting at the offset index and extending for a given number of items afterwards.
func arrayRange<T>(arr: [T], offset: Nat, limit: Nat) : [T]Returns a portion of the array, starting at the offset index and extending for a given number of elements afterwards.
func sort<A>(xs : [A], cmp : (A, A) -> Order.Order) : [A]Sorts the elements of an array and returns the sorted array. The sort order is determined by cmp function.
func sortInPlace<A>(xs : [var A], cmp : (A, A) -> Order.Order)Sorts the elements of an array in place and returns the sorted array. The sort order is determined by cmp function.
func toAddress(p: Principal) : TextConverts Principal into the Account Id string.
func blobToAddress(blob : Blob) : TextConverts Blob into the Account Id string.
func toText(p: Principal) : TextConverts Principal into the Principal Id string.
func isEmptyIdentity(caller: Principal) : BoolChecks if the caller is empty.