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trezor-wallet/src/utils/validators.js
2019-04-22 13:46:19 +02:00

28 lines
743 B
JavaScript

/* @flow */
export const hasUppercase = (value: string) => {
const UPPERCASE_RE = new RegExp('^(.*[A-Z].*)$');
return UPPERCASE_RE.test(value);
};
export const hasDecimals = (value: string, decimals: number) => {
if (decimals === 0) {
return isAbs(value);
}
const ETH_DECIMALS_RE = new RegExp(
`^(0|0\\.([0-9]{0,${decimals}})?|[1-9][0-9]*\\.?([0-9]{0,${decimals}})?)$`
);
return ETH_DECIMALS_RE.test(value);
};
export const isAbs = (value: string) => {
const ABS_RE = new RegExp('^[0-9]+$');
return ABS_RE.test(value);
};
export const isNumber = (value: string) => {
const NUMBER_RE = new RegExp(`^(0|0\\.([0-9]+)?|[1-9][0-9]*\\.?([0-9]+)?)$`);
return NUMBER_RE.test(value);
};