Readonly[toReadonlybufferThe ArrayBuffer instance referenced by the array.
ReadonlybyteThe length in bytes of the array.
ReadonlybyteThe offset in bytes of the array.
ReadonlyBYTES_The size in bytes of each element in the array.
ReadonlylengthThe length of the array.
Returns the this object after copying a section of the array identified by start and end to the same array starting at position target
If target is negative, it is treated as length+target where length is the length of the array.
If start is negative, it is treated as length+start. If end is negative, it is treated as length+end.
Optionalend: numberIf not specified, length of the this object is used as its default value.
Returns an array of key, value pairs for every entry in the array
Determines whether all the members of an array satisfy the specified test.
A function that accepts up to three arguments. The every method calls the predicate function for each element in the array until the predicate returns a value which is coercible to the Boolean value false, or until the end of the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
OptionalthisArg: anyChanges all array elements from start to end index to a static value and returns the modified array
value to fill array section with
Optionalstart: numberindex to start filling the array at. If start is negative, it is treated as length+start where length is the length of the array.
Optionalend: numberindex to stop filling the array at. If end is negative, it is treated as length+end.
Returns the elements of an array that meet the condition specified in a callback function.
A function that accepts up to three arguments. The filter method calls the predicate function one time for each element in the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
OptionalthisArg: anyReturns the value of the first element in the array where predicate is true, and undefined otherwise.
find calls predicate once for each element of the array, in ascending order, until it finds one where predicate returns true. If such an element is found, find immediately returns that element value. Otherwise, find returns undefined.
OptionalthisArg: anyIf provided, it will be used as the this value for each invocation of predicate. If it is not provided, undefined is used instead.
OptionalthisArg: anyReturns the value of the first element in the array where predicate is true, and undefined otherwise.
Returns the index of the first element in the array where predicate is true, and -1 otherwise.
find calls predicate once for each element of the array, in ascending order, until it finds one where predicate returns true. If such an element is found, findIndex immediately returns that element index. Otherwise, findIndex returns -1.
OptionalthisArg: anyIf provided, it will be used as the this value for each invocation of predicate. If it is not provided, undefined is used instead.
OptionalthisArg: anyfindIndex 为数组的每个元素（按升序）调用一次谓词，直到找到一个谓词返回 true 的元素。如果找到这样的元素，findIndex 会立即返回该元素的索引。否则，findIndex 返回 -1。
Performs the specified action for each element in an array.
A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
OptionalthisArg: anyDetermines whether an array includes a certain element, returning true or false as appropriate.
The element to search for.
OptionalfromIndex: numberThe position in this array at which to begin searching for searchElement.
OptionalfromIndex: numberReturns the index of the first occurrence of a value in an array.
The value to locate in the array.
OptionalfromIndex: numberThe array index at which to begin the search. If fromIndex is omitted, the search starts at index 0.
OptionalfromIndex: numberAdds all the elements of an array separated by the specified separator string.
Optionalseparator: stringA string used to separate one element of an array from the next in the resulting String. If omitted, the array elements are separated with a comma.
Optionalseparator: stringReturns an list of keys in the array
Returns the index of the last occurrence of a value in an array.
The value to locate in the array.
OptionalfromIndex: numberThe array index at which to begin the search. If fromIndex is omitted, the search starts at index 0.
OptionalfromIndex: numberCalls a defined callback function on each element of an array, and returns an array that contains the results.
A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
OptionalthisArg: anyCalls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.
Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.
If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
Calls the specified callback function for all the elements in an array, in descending order. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array.
Calls the specified callback function for all the elements in an array, in descending order. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array.
If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
Calls the specified callback function for all the elements in an array, in descending order. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
Reverses the elements in an Array.
Returns a section of an array.
Optionalstart: numberThe beginning of the specified portion of the array.
Optionalend: numberThe end of the specified portion of the array. This is exclusive of the element at the index 'end'.
Optionalstart: numberOptionalend: numberDetermines whether the specified callback function returns true for any element of an array.
A function that accepts up to three arguments. The some method calls the predicate function for each element in the array until the predicate returns a value which is coercible to the Boolean value true, or until the end of the array.
OptionalthisArg: anyAn object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
OptionalthisArg: anySorts an array.
OptionalcompareFn: (a: number, b: number) => numberFunction used to determine the order of the elements. It is expected to return a negative value if first argument is less than second argument, zero if they're equal and a positive value otherwise. If omitted, the elements are sorted in ascending order.
[11,2,22,1].sort((a, b) => a - b)
OptionalcompareFn: (a: number, b: number) => numberFunction used to determine the order of the elements. It is expected to return a negative value if first argument is less than second argument, zero if they're equal and a positive value otherwise. If omitted, the elements are sorted in ascending, ASCII character order.
[11,2,22,1].sort((a, b) => a - b)
Gets a new Uint16Array view of the ArrayBuffer store for this array, referencing the elements at begin, inclusive, up to end, exclusive.
Optionalbegin: numberThe index of the beginning of the array.
Optionalend: numberThe index of the end of the array.
Optionalbegin: numberOptionalend: numberConverts a number to a string by using the current locale.
Returns a string representation of an array.
Returns the primitive value of the specified object.
Returns an list of values in the array
A typed array of 16-bit unsigned integer values. The contents are initialized to 0. If the requested number of bytes could not be allocated an exception is raised.