Sainan
a75e6d6b95
and some initial refactoring to avoid it where possible Reviewed-on: #2407 Co-authored-by: Sainan <63328889+Sainan@users.noreply.github.com> Co-committed-by: Sainan <63328889+Sainan@users.noreply.github.com>
73 lines
1.9 KiB
TypeScript
73 lines
1.9 KiB
TypeScript
export const isEmptyObject = (obj: unknown): boolean => {
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return Boolean(obj && Object.keys(obj).length === 0 && obj.constructor === Object);
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};
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/*
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alternative to isEmptyObject
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export const isEmptyObject = (obj: object): boolean => {
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return Object.keys(obj).length === 0;
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};
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*/
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export const isString = (text: unknown): text is string => {
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return typeof text === "string" || text instanceof String;
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};
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export const parseString = (data: unknown): string => {
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if (!isString(data)) {
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throw new Error("data is not a string");
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}
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return data;
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};
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export const isNumber = (number: unknown): number is number => {
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return typeof number === "number" && !isNaN(number);
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};
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export const parseNumber = (data: unknown): number => {
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if (!isNumber(data)) {
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throw new Error("data is not a number");
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}
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return Number(data);
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};
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export const isDate = (date: string): boolean => {
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return Date.parse(date) != 0;
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};
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export const parseDateNumber = (date: unknown): string => {
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if (!isString(date) || !isDate(date)) {
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throw new Error("date could not be parsed");
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}
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return date;
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};
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export const parseEmail = (email: unknown): string => {
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if (!isString(email)) {
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throw new Error("incorrect email");
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}
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return email;
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};
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export const isBoolean = (booleanCandidate: unknown): booleanCandidate is boolean => {
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return typeof booleanCandidate === "boolean";
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};
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export const parseBoolean = (booleanCandidate: unknown): boolean => {
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if (!isBoolean(booleanCandidate)) {
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throw new Error("argument was not a boolean");
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}
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return booleanCandidate;
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};
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export const isObject = (objectCandidate: unknown): objectCandidate is Record<string, unknown> => {
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return (
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(typeof objectCandidate === "object" || objectCandidate instanceof Object) &&
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objectCandidate !== null &&
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!Array.isArray(objectCandidate)
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);
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};
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