@polkadot/util
Version:
A collection of useful utilities for @polkadot
23 lines (22 loc) • 795 B
JavaScript
Object.defineProperty(exports, "__esModule", { value: true });
exports.floatToU8a = floatToU8a;
/**
* @name floatToU8a
* @description Converts a float into a U8a representation (While we don't use BE in SCALE
* we still allow for either representation, although, as elsewhere, isLe is default)
*/
function floatToU8a(value = 0.0, { bitLength = 32, isLe = true } = {}) {
if (bitLength !== 32 && bitLength !== 64) {
throw new Error('Invalid bitLength provided, expected 32 or 64');
}
const result = new Uint8Array(bitLength / 8);
const dv = new DataView(result.buffer, result.byteOffset);
if (bitLength === 32) {
dv.setFloat32(0, Number(value), isLe);
}
else {
dv.setFloat64(0, Number(value), isLe);
}
return result;
}
;