33 lines
861 B
TypeScript
33 lines
861 B
TypeScript
export namespace UtilService {
|
|
export function addMonths(date: Date, months: number): Date {
|
|
const d = date.getDate();
|
|
date.setMonth(date.getMonth() + +months);
|
|
if (date.getDate() != d) {
|
|
date.setDate(0);
|
|
}
|
|
return date;
|
|
}
|
|
|
|
export function getErrorMessage(error: unknown) {
|
|
if (error instanceof Error) return error.message;
|
|
return String(error);
|
|
}
|
|
|
|
export function stringifySafely(obj: any) {
|
|
let cache: any[] = [];
|
|
let str = JSON.stringify(obj, function (key, value) {
|
|
if (typeof value === 'object' && value !== null) {
|
|
if (cache.indexOf(value) !== -1) {
|
|
// Circular reference found, discard key
|
|
return;
|
|
}
|
|
// Store value in our collection
|
|
cache.push(value);
|
|
}
|
|
return value;
|
|
});
|
|
cache = []; // reset the cache
|
|
return str;
|
|
}
|
|
}
|