Casts the input value to a signed 8-bit integer.
Usage | Returns | Number.int8() | Number |
Argument | Type | Details | this: input | Number | The input value. |
Examples
Code Editor (JavaScript)
// Cast a number to signed 8-bit integer: [-128, 127].
var number = ee.Number(100);
print('Number:', number);
var int8Number = number.int8();
print('Number cast to int8:', int8Number);
/**
* Casting numbers to int8 that are outside of its range and precision can
* modify the resulting value, note the behavior of the following scenarios.
*/
// A floating point number cast to int8 loses decimal precision.
var float = ee.Number(1.7);
print('Floating point value:', float);
var floatToInt8 = float.int8();
print('Floating point value cast to int8:', floatToInt8);
// A number greater than int8 range max cast to int8 becomes int8 range max.
var INT8_MAX = 127;
var outOfRangeHi = ee.Number(INT8_MAX + 12345);
print('Greater than int8 max:', outOfRangeHi);
var outOfRangeHiToInt8 = outOfRangeHi.int8();
print('Greater than int8 max cast to int8 becomes int8 max:', outOfRangeHiToInt8);
// A number greater than int8 range min cast to int8 becomes int8 range min.
var INT8_MIN = -128;
var outOfRangeLo = ee.Number(INT8_MIN - 12345);
print('Less than int8 min:', outOfRangeLo);
var outOfRangeLoToInt8 = outOfRangeLo.int8();
print('Less than int8 min cast to int8 becomes int8 min:', outOfRangeLoToInt8);
Python setup
See the
Python Environment page for information on the Python API and using
geemap
for interactive development.
import ee
import geemap.core as geemap
Colab (Python)
# Cast a number to signed 8-bit integer: [-128, 127].
number = ee.Number(100)
print('Number:', number.getInfo())
int8_number = number.int8()
print('Number cast to int8:', int8_number.getInfo())
"""Casting numbers to int8 that are outside of its range and precision can
modify the resulting value, note the behavior of the following scenarios.
"""
# A floating point number cast to int8 loses decimal precision.
float_number = ee.Number(1.7)
print('Floating point value:', float_number.getInfo())
float_to_int8 = float_number.int8()
print('Floating point value cast to int8:', float_to_int8.getInfo())
# A number greater than int8 range max cast to int8 becomes int8 range max.
INT8_MAX = 127
out_of_range_hi = ee.Number(INT8_MAX + 12345)
print('Greater than int8 max:', out_of_range_hi.getInfo())
out_of_range_hi_to_int8 = out_of_range_hi.int8()
print('Greater than int8 max cast to int8 becomes int8 max:',
out_of_range_hi_to_int8.getInfo())
# A number greater than int8 range min cast to int8 becomes int8 range min.
INT8_MIN = -128
out_of_range_lo = ee.Number(INT8_MIN - 12345)
print('Less than int8 min:', out_of_range_lo.getInfo())
out_of_range_lo_to_int8 = out_of_range_lo.int8()
print('Less than int8 min cast to int8 becomes int8 min:',
out_of_range_lo_to_int8.getInfo())