JavaScript Mapping for Built-In Types

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Mapping of Slice Built-In Types to JavaScript Types

The Slice built-in types are mapped to JavaScript types as follows:

Slice

JavaScript

bool

Boolean

byte

Number

short

Number

int

Number

long

Ice.Long

float

Number

double

Number

string

String

Mapping of Slice built-in types to JavaScript.

JavaScript Mapping for Long Integers

JavaScript does not provide a type that is capable of fully representing a Slice long value (a 64-bit integer), therefore Ice provides the Ice.Long type. An instance of Ice.Long encapsulates the high and low order 32-bit words (in little endian format) representing the 64-bit long value and provides access to these values via the high and low properties. Instances also provide the toNumber method, which returns a Number if the long value can be correctly represented by the Number type's integer range, otherwise it returns Number.POSITIVE_INFINITY or Number.NEGATIVE_INFINITY for positive and negative values, respectively.

Ice.Long objects have limited functionality because their primary purpose is to allow a long value to be re-transmitted, but instances do support the methods hashCode, equals, and toString.

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