}
// More efficient time validation function than the one provided by date-fns
-export const isValidTime = (date: Date | number | undefined): boolean => {
+export const isValidDate = (date: Date | number | undefined): date is Date | number => {
if (typeof date === 'number') {
return !isNaN(date)
} else if (isDate(date)) {
}
export const convertToDate = (
- value: Date | string | number | null | undefined
-): Date | null | undefined => {
+ value: Date | string | number | undefined | null
+): Date | undefined | null => {
if (value == null) {
return value
}
return Math.trunc(value)
}
if (isString(value)) {
- changedValue = parseInt(value as string)
+ changedValue = parseInt(value)
}
if (isNaN(changedValue)) {
throw new Error(`Cannot convert to integer: '${String(value)}'`)
}
let changedValue: number = value as number
if (isString(value)) {
- changedValue = parseFloat(value as string)
+ changedValue = parseFloat(value)
}
if (isNaN(changedValue)) {
throw new Error(`Cannot convert to float: '${String(value)}'`)
// Check the type
if (typeof value === 'boolean') {
return value
- } else if (isString(value) && ((value as string).toLowerCase() === 'true' || value === '1')) {
+ } else if (isString(value) && (value.toLowerCase() === 'true' || value === '1')) {
result = true
} else if (typeof value === 'number' && value === 1) {
result = true
return timeSeries.map(timeSeriesItem => timeSeriesItem.value)
}
-export const isObject = (item: unknown): boolean => {
- return item != null && typeof item === 'object' && !Array.isArray(item)
-}
-
type CloneableData =
| number
| string
return clone as O
}
-export const cloneObject = <T>(object: T): T => {
+export const clone = <T>(object: T): T => {
return deepClone(object as CloneableData) as T
}
-export const hasOwnProp = (object: unknown, property: PropertyKey): boolean => {
- return isObject(object) && Object.hasOwn(object as object, property)
+export const isObject = (value: unknown): value is object => {
+ return value != null && typeof value === 'object' && !Array.isArray(value)
}
-export const isCFEnvironment = (): boolean => {
- return env.VCAP_APPLICATION != null
+export const isEmptyObject = (object: object): object is Record<string, never> => {
+ if (object.constructor !== Object) {
+ return false
+ }
+ // Iterates over the keys of an object, if
+ // any exist, return false.
+ // eslint-disable-next-line no-unreachable-loop
+ for (const _ in object) {
+ return false
+ }
+ return true
}
-export const isIterable = <T>(obj: T): boolean => {
- return obj != null ? typeof obj[Symbol.iterator as keyof T] === 'function' : false
+export const hasOwnProp = (value: unknown, property: PropertyKey): boolean => {
+ return isObject(value) && Object.hasOwn(value, property)
}
-const isString = (value: unknown): boolean => {
- return typeof value === 'string'
+export const isCFEnvironment = (): boolean => {
+ return env.VCAP_APPLICATION != null
}
-export const isEmptyString = (value: unknown): boolean => {
- return value == null || (isString(value) && (value as string).trim().length === 0)
+const isString = (value: unknown): value is string => {
+ return typeof value === 'string'
}
-export const isNotEmptyString = (value: unknown): boolean => {
- return isString(value) && (value as string).trim().length > 0
+export const isEmptyString = (value: unknown): value is '' | undefined | null => {
+ return value == null || (isString(value) && value.trim().length === 0)
}
-export const isEmptyArray = (object: unknown): boolean => {
- return Array.isArray(object) && object.length === 0
+export const isNotEmptyString = (value: unknown): value is string => {
+ return isString(value) && value.trim().length > 0
}
-export const isNotEmptyArray = (object: unknown): boolean => {
- return Array.isArray(object) && object.length > 0
+export const isEmptyArray = (value: unknown): value is never[] => {
+ return Array.isArray(value) && value.length === 0
}
-export const isEmptyObject = (obj: object): boolean => {
- if (obj.constructor !== Object) {
- return false
- }
- // Iterates over the keys of an object, if
- // any exist, return false.
- // eslint-disable-next-line no-unreachable-loop
- for (const _ in obj) {
- return false
- }
- return true
+export const isNotEmptyArray = (value: unknown): value is unknown[] => {
+ return Array.isArray(value) && value.length > 0
}
export const insertAt = (str: string, subStr: string, pos: number): string =>
}
export const JSONStringifyWithMapSupport = (
- obj: Record<string, unknown> | Array<Record<string, unknown>> | Map<unknown, unknown>,
+ object: Record<string, unknown> | Array<Record<string, unknown>> | Map<unknown, unknown>,
space?: number
): string => {
return JSON.stringify(
- obj,
+ object,
(_, value: Record<string, unknown>) => {
if (value instanceof Map) {
return {