56 lines
1.6 KiB
TypeScript
56 lines
1.6 KiB
TypeScript
import { BigNumber } from 'bignumber.js';
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export function toFixedIfLarger(num: number, fixedSize: number = 6): string {
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return parseFloat(num.toFixed(fixedSize)).toString();
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}
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export function combineAndUpper(...args: string[]) {
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return args.reduce((acc, item) => acc.concat(item.toUpperCase()), '');
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}
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// Use in place of angular number filter
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export function formatNumber(num: BigNumber, digits: number = 3): string {
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const parts = num.toFixed(digits).split('.');
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// Remove trailing zeroes on decimal (If there is a decimal)
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if (parts[1]) {
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parts[1] = parts[1].replace(/0+$/, '');
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// If there's nothing left, remove decimal altogether
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if (!parts[1]) {
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parts.pop();
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}
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}
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// Commafy the whole numbers
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parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ',');
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return parts.join('.');
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}
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// TODO: Comment up this function to make it clear what's happening here.
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export function formatGasLimit(
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limit: BigNumber,
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transactionUnit: string = 'ether'
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) {
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let limitStr = limit.toString();
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// I'm guessing this is some known off-by-one-error from the node?
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// 21k is only the limit for ethereum though, so make sure they're
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// sending ether if we're going to fix it for them.
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if (limitStr === '21001' && transactionUnit === 'ether') {
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limitStr = '21000';
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}
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// If they've exceeded the gas limit per block, make it -1
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// TODO: Explain why not cap at limit?
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// TODO: Make this dynamic, potentially. Would require promisifying this fn.
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// TODO: Figure out if this is only true for ether. Do other currencies have
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// this limit?
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if (limit.gte(4000000)) {
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limitStr = '-1';
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}
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return limitStr;
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}
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