swtc-chains/esm/functions.js

swtc chain information

import { ZERO, CHAINS } from "./constants";
export function funcGetChain(chain_or_token) {
    const chains = CHAINS.filter(chain => chain.code.toLowerCase() === chain_or_token.toLowerCase() ||
        chain.currency.toUpperCase() === chain_or_token.toUpperCase());
    return chains.length === 1 ? chains[0] : undefined;
}
export function funcSeqEqual(arr1, arr2) {
    if (arr1.length !== arr2.length) {
        return false;
    }
    for (let i = 0; i < arr1.length; i++) {
        if (arr1[i] !== arr2[i]) {
            return false;
        }
    }
    return true;
}
function isSequence(val) {
    return val.length !== undefined;
}
export function funcConcatArgs(...args) {
    const ret = [];
    args.forEach(arg => {
        if (isSequence(arg)) {
            for (const e of arg) {
                ret.push(e);
            }
        }
        else {
            ret.push(arg);
        }
    });
    return ret;
}
export function funcHexToBytes(hex) {
    const bytes = [];
    for (let c = 0; c < hex.length; c += 2) {
        bytes.push(parseInt(hex.substr(c, 2), 16));
    }
    return bytes;
}
export function funcBytesToHex(bytes) {
    const hex = [];
    for (const byte of bytes) {
        const current = byte < 0 ? byte + 256 : byte;
        hex.push((current >>> 4).toString(16));
        hex.push((current & 0xf).toString(16));
    }
    return hex.join("").toUpperCase();
}
export function funcHexToString(h) {
    const a = [];
    let i = 0;
    if (h.length % 2) {
        a.push(String.fromCharCode(parseInt(h.substring(0, 1), 16)));
        i = 1;
    }
    for (; i < h.length; i += 2) {
        a.push(String.fromCharCode(parseInt(h.substring(i, i + 2), 16)));
    }
    return a.join("");
}
export function funcStringToHex(s) {
    let result = "";
    for (const e of s) {
        const b = e.charCodeAt(0);
        result += b < 16 ? "0" + b.toString(16) : b.toString(16);
    }
    return result;
}
export function funcString2Hex(s) {
    let result = funcStringToHex(s);
    if (result.length < 64) {
        result += ZERO.substr(result.length);
    }
    return result;
}
export function funcNumber2Hex(n) {
    n = n.toString(16);
    return ZERO.substr(0, 64 - n.length) + n;
}
export function funcHex2Number(h) {
    return parseInt(h, 16);
}
export function funcIsEmpty(value) {
    const type = typeof value;
    if ((value !== null && type === "object") || type === "function") {
        const properties = Object.keys(value);
        if (properties.length === 0 || properties.size === 0) {
            return true;
        }
    }
    return !value;
}
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