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export function isArray(value: unknown): boolean {
return Array.isArray(value);
}
export function isBoolean(value: unknown): boolean {
return typeof value === "boolean" || value instanceof Boolean;
}
export function isNull(value: unknown): boolean {
return value === null;
}
export function isNullOrUndefined(value: unknown): boolean {
return value === null || value === undefined;
}
export function isNumber(value: unknown): boolean {
return typeof value === "number" || value instanceof Number;
}
export function isString(value: unknown): boolean {
return typeof value === "string" || value instanceof String;
}
export function isSymbol(value: unknown): boolean {
return typeof value === "symbol";
}
export function isUndefined(value: unknown): boolean {
return value === undefined;
}
export function isObject(value: unknown): boolean {
return value !== null && typeof value === "object";
}
export function isError(e: unknown): boolean {
return e instanceof Error;
}
export function isFunction(value: unknown): boolean {
return typeof value === "function";
}
export function isRegExp(value: unknown): boolean {
return value instanceof RegExp;
}
export function isPrimitive(value: unknown): boolean {
return (
value === null || (typeof value !== "object" && typeof value !== "function")
);
}
export function validateIntegerRange(
value: number,
name: string,
min = -2147483648,
max = 2147483647
): void {
// The defaults for min and max correspond to the limits of 32-bit integers.
if (!Number.isInteger(value)) {
throw new Error(`${name} must be 'an integer' but was ${value}`);
}
if (value < min || value > max) {
throw new Error(
`${name} must be >= ${min} && <= ${max}. Value was ${value}`
);
}
}
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