Module @ixfx/guards - v0.42.0

Throws if index is an invalid array index for array, and if array itself is not a valid array.

Returns true if parameter is an array of strings

Throws an error if parameter is not an array

Returns fallback if v is NaN, otherwise returns v.

Parses value as an integer, returning it if it meets the range criteria. If not, defaultValue is returned.

Checks if value an integer and meets additional criteria. See numberTest for guard details, or use that if integer checking is not required.

Returns true if value is an integer in number or string form

Returns true if x is a power of two

Compares two numbers with a given number of decimal places

Checks if t is not a number or within specified range. Returns [false, reason:string] if invalid or [true] if valid.

Returns test of value being in the range of 0-1. Equiv to number(value, percentage);

Inclusive range 4-6 = 4, 5, 6 Exclusive range 4-6 = 5

Returns the error as a string.

Returns the first failed result, or undefined if there are no fails

Returns true if result is an error

Returns true if result is OK and has a value

Returns first failed result or final value.

If any of results is an error, throws it, otherwise ignored.

Gets the result as an Error

Unwraps the result, returning its value if OK. If not, an exception is thrown.

If result is an error, calls callback, passing the error. Otherwise does nothing

Throws an error if parameter is not an string

Tests_if value is a plain object

Tests if value is primitive value (bigint,number,string or boolean) or plain object

Throws an error if any result is a failure. Error message will be the combined from all errors.