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author | Fabio Berger <me@fabioberger.com> | 2018-10-18 18:35:07 +0800 |
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committer | Fabio Berger <me@fabioberger.com> | 2018-10-18 18:35:07 +0800 |
commit | cdd650d0eb83153a992922c6ffff35b494f299d3 (patch) | |
tree | fc12135e69ae74403a26408d2d7625e8a3fe334e /packages/instant/src/util/format.ts | |
parent | c333d093b585fa0250a6973f2d396eb3cf227334 (diff) | |
parent | bd8ba14bf46cb901e14f0ee718ac01cdbc833e86 (diff) | |
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merge development
Diffstat (limited to 'packages/instant/src/util/format.ts')
-rw-r--r-- | packages/instant/src/util/format.ts | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/packages/instant/src/util/format.ts b/packages/instant/src/util/format.ts new file mode 100644 index 000000000..09eb880b2 --- /dev/null +++ b/packages/instant/src/util/format.ts @@ -0,0 +1,53 @@ +import { BigNumber } from '@0xproject/utils'; +import { Web3Wrapper } from '@0xproject/web3-wrapper'; +import * as _ from 'lodash'; + +import { ethDecimals } from '../constants'; + +export const format = { + ethBaseAmount: ( + ethBaseAmount?: BigNumber, + decimalPlaces: number = 4, + defaultText: React.ReactNode = '0 ETH', + ): React.ReactNode => { + if (_.isUndefined(ethBaseAmount)) { + return defaultText; + } + const ethUnitAmount = Web3Wrapper.toUnitAmount(ethBaseAmount, ethDecimals); + return format.ethUnitAmount(ethUnitAmount, decimalPlaces); + }, + ethUnitAmount: ( + ethUnitAmount?: BigNumber, + decimalPlaces: number = 4, + defaultText: React.ReactNode = '0 ETH', + ): React.ReactNode => { + if (_.isUndefined(ethUnitAmount)) { + return defaultText; + } + const roundedAmount = ethUnitAmount.round(decimalPlaces); + return `${roundedAmount} ETH`; + }, + ethBaseAmountInUsd: ( + ethBaseAmount?: BigNumber, + ethUsdPrice?: BigNumber, + decimalPlaces: number = 2, + defaultText: React.ReactNode = '$0.00', + ): React.ReactNode => { + if (_.isUndefined(ethBaseAmount) || _.isUndefined(ethUsdPrice)) { + return defaultText; + } + const ethUnitAmount = Web3Wrapper.toUnitAmount(ethBaseAmount, ethDecimals); + return format.ethUnitAmountInUsd(ethUnitAmount, ethUsdPrice, decimalPlaces); + }, + ethUnitAmountInUsd: ( + ethUnitAmount?: BigNumber, + ethUsdPrice?: BigNumber, + decimalPlaces: number = 2, + defaultText: React.ReactNode = '$0.00', + ): React.ReactNode => { + if (_.isUndefined(ethUnitAmount) || _.isUndefined(ethUsdPrice)) { + return defaultText; + } + return `$${ethUnitAmount.mul(ethUsdPrice).toFixed(decimalPlaces)}`; + }, +}; |