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• [DIR] ..
• [FILE] index.d.ts
• [FILE] index.js
• [FILE] toHex.d.ts
• [FILE] toHex.js
• [FILE] toU8a.d.ts
• [FILE] toU8a.js

Просмотр файла: toHex.js

import { hexFixLength } from '../hex/fixLength.js';
/**
 * @name numberToHex
 * @summary Creates a hex value from a number.
 * @description
 * `null`/`undefined`/`NaN` inputs returns an empty `0x` result. `number` input values return the actual bytes value converted to a `hex`. With `bitLength` set, it converts the number to the equivalent size.
 * @example
 * <BR>
 *
 * ```javascript
 * import { numberToHex } from '@polkadot/util';
 *
 * numberToHex(0x1234); // => '0x1234'
 * numberToHex(0x1234, 32); // => 0x00001234
 * ```
 */
export function numberToHex(value, bitLength = -1) {
    const hex = (!value || Number.isNaN(value) ? 0 : value).toString(16);
    return hexFixLength(hex.length % 2 ? `0${hex}` : hex, bitLength, true);
}

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