RA

RA

Source:

Methods

(static) isArray(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is Array

Example
RA.isArray([]); //=> true
RA.isArray(null); //=> false
RA.isArray({}); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isAsyncFunction(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is Async Function

Example
RA.isAsyncFunction(async function test() { }); //=> true
RA.isAsyncFunction(null); //=> false
RA.isAsyncFunction(function test() { }); //=> false
RA.isAsyncFunction(() => {}); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isBoolean(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is Boolean

Example
RA.isBoolean(false); //=> true
RA.isBoolean(true); //=> true
RA.isBoolean(null); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isDate(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if value is Date object

Example
RA.isDate(new Date()); //=> true
RA.isDate('1997-07-16T19:20+01:00'); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isFunction(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is Function

Example
RA.isFunction(function test() { }); //=> true
RA.isFunction(function* test() { }); //=> true
RA.isFunction(async function test() { }); //=> true
RA.isFunction(() => {}); //=> true
RA.isFunction(null); //=> false
RA.isFunction('abc'); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isGeneratorFunction(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is Generator Function

Example
RA.isGeneratorFunction(function* test() { }); //=> true
RA.isGeneratorFunction(null); //=> false
RA.isGeneratorFunction(function test() { }); //=> false
RA.isGeneratorFunction(() => {}); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNaN(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks whether the passed value is NaN and its type is Number. It is a more robust version of the original, global isNaN().

Example
RA.isNaN(NaN); // => true
RA.isNaN(Number.NaN); // => true
RA.isNaN(0 / 0); // => true

// e.g. these would have been true with global isNaN().
RA.isNaN('NaN'); // => false
RA.isNaN(undefined); // => false
RA.isNaN({}); // => false
RA.isNaN('blabla'); // => false

RA.isNaN(true); // => false
RA.isNaN(null); // => false
RA.isNaN(37); // => false
RA.isNaN('37'); // => false
RA.isNaN('37.37'); // => false
RA.isNaN(''); // => false
RA.isNaN(' '); // => false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNilOrEmpty(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Returns true if the given value is its type's empty value, null or undefined

Example
RA.isNilOrEmpty([1, 2, 3]); //=> false
RA.isNilOrEmpty([]); //=> true
RA.isNilOrEmpty(''); //=> true
RA.isNilOrEmpty(null); //=> true
RA.isNilOrEmpty(undefined): //=> true
RA.isNilOrEmpty({}); //=> true
RA.isNilOrEmpty({length: 0}); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotArray(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is complement of Array

Example
RA.isNotArray([]); //=> false
RA.isNotArray(null); //=> true
RA.isNotArray({}); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotArrayLike(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Tests whether or not an object is similar to an array.

Example
RA.isNotArrayLike([]); //=> false
RA.isNotArrayLike(true); //=> true
RA.isNotArrayLike({}); //=> true
RA.isNotArrayLike({length: 10}); //=> true
RA.isNotArrayLike({0: 'zero', 9: 'nine', length: 10}); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotAsyncFunction(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is complement of Async Function

Example
RA.isNotAsyncFunction(async function test() { }); //=> false
RA.isNotAsyncFunction(null); //=> true
RA.isNotAsyncFunction(function test() { }); //=> true
RA.isNotAsyncFunction(() => {}); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotBoolean(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is complement of Boolean

Example
RA.isNotBoolean(false); //=> false
RA.isNotBoolean(true); //=> false
RA.isNotBoolean(null); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotDate(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if value is complement of Date object

Example
RA.isNotDate(new Date()); //=> false
RA.isNotDate('1997-07-16T19:20+01:00'); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotEmpty(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Returns true if the given value is not its type's empty value; false otherwise.

Example
RA.isNotEmpty([1, 2, 3]); //=> true
RA.isNotEmpty([]); //=> false
RA.isNotEmpty(''); //=> false
RA.isNotEmpty(null); //=> true
RA.isNotEmpty(undefined): //=> true
RA.isNotEmpty({}); //=> false
RA.isNotEmpty({length: 0}); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotFunction(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is complement of Function

Example
RA.isNotFunction(function test() { }); //=> false
RA.isNotFunction(function* test() { }); //=> false
RA.isNotFunction(async function test() { }); //=> false
RA.isNotFunction(() => {}); //=> false
RA.isNotFunction(null); //=> true
RA.isNotFunction('abc'); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotGeneratorFunction(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is complement of Generator Function

Example
RA.isNotGeneratorFunction(function* test() { }); //=> false
RA.isNotGeneratorFunction(null); //=> true
RA.isNotGeneratorFunction(function test() { }); //=> true
RA.isNotGeneratorFunction(() => {}); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotNaN(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks whether the passed value is complement of NaN and its type is not Number.

Example
RA.isNotNaN(NaN); // => false
RA.isNotNaN(Number.NaN); // => false
RA.isNotNaN(0 / 0); // => false

RA.isNotNaN('NaN'); // => true
RA.isNotNaN(undefined); // => true
RA.isNotNaN({}); // => true
RA.isNotNaN('blabla'); // => true

RA.isNotNaN(true); // => true
RA.isNotNaN(null); // => true
RA.isNotNaN(37); // => true
RA.isNotNaN('37'); // => true
RA.isNotNaN('37.37'); // => true
RA.isNotNaN(''); // => true
RA.isNotNaN(' '); // => true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotNil(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is complement of null or undefined

Example
RA.isNotNil(null); //=> false
RA.isNotNil(undefined); //=> false
RA.isNotNil(0); //=> true
RA.isNotNil([]); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotNull(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is complement of null

Example
RA.isNotNull(1); //=> true
RA.isNotNull(undefined); //=> true
RA.isNotNull(null); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotNumber(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if value is a complement of Number primitive or object

Example
RA.isNotNumber(5); // => false
RA.isNotNumber(Number.MAX_VALUE); // => false
RA.isNotNumber(-Infinity); // => false
RA.isNotNumber('5'); // => true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotObject(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is complement of language type of Object

Example
RA.isNotObject({}); //=> false
RA.isNotObject([]); //=> false
RA.isNotObject(() => {}); //=> false
RA.isNotObject(null); //=> true
RA.isNotObject(undefined); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotObjectLike(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if value is not object-like. A value is object-like if it's not null and has a typeof result of "object".

Example
RA.isNotObjectLike({}); //=> false
RA.isNotObjectLike([]); //=> false
RA.isNotObjectLike(() => {}); //=> true
RA.isNotObjectLike(null); //=> true
RA.isNotObjectLike(undefined); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotPlainObject(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Check to see if an object is a not plain object (created using {}, new Object() or Object.create(null))

Example
class Bar {
  constructor() {
    this.prop = 'value';
  }
}

RA.isNotPlainObject(new Bar()); //=> true
RA.isNotPlainObject({ prop: 'value' }); //=> false
RA.isNotPlainObject(['a', 'b', 'c']); //=> true
RA.isNotPlainObject(Object.create(null); //=> false
RA.isNotPlainObject(new Object()); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotString(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is complement of String

Example
RA.isNotString('abc'); //=> false
RA.isNotString(1); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNotUndefined(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is complement undefined

Example
RA.isNotUndefined(1); //=> true
RA.isNotUndefined(undefined); //=> false
RA.isNotUndefined(null); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNull(val) → {Boolean}

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Since:
Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is null

Example
RA.isNull(1); //=> false
RA.isNull(undefined); //=> false
RA.isNull(null); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isNumber(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if value is a Number primitive or object

Example
RA.isNumber(5); // => true
RA.isNumber(Number.MAX_VALUE); // => true
RA.isNumber(-Infinity); // => true
RA.isNumber('5'); // => false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isObject(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is language type of Object

Example
RA.isObject({}); //=> true
RA.isObject([]); //=> true
RA.isObject(() => {}); //=> true
RA.isObject(null); //=> false
RA.isObject(undefined); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isObjectLike(val) → {Boolean}

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Since:
Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if value is object-like. A value is object-like if it's not null and has a typeof result of "object".

Example
RA.isObjectLike({}); //=> true
RA.isObjectLike([]); //=> true
RA.isObjectLike(() => {}); //=> false
RA.isObjectLike(null); //=> false
RA.isObjectLike(undefined); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isPlainObject(val) → {Boolean}

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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Check to see if an object is a plain object (created using {}, new Object() or Object.create(null))

Example
class Bar {
  constructor() {
    this.prop = 'value';
  }
}

RA.isPlainObject(new Bar()); //=> false
RA.isPlainObject({ prop: 'value' }); //=> true
RA.isPlainObject(['a', 'b', 'c']); //=> false
RA.isPlainObject(Object.create(null); //=> true
RA.isPlainObject(new Object()); //=> true
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isString(val) → {Boolean}

Source:
Since:
Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is String

Example
RA.isString('abc'); //=> true
RA.isString(1); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean

(static) isUndefined(val) → {Boolean}

Source:
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Signature:
  • * -> Boolean
Category:
  • Type
See also:

Checks if input value is undefined

Example
RA.isUndefined(1); //=> false
RA.isUndefined(undefined); //=> true
RA.isUndefined(null); //=> false
Parameters:
Name Type Description
val *

The value to test
Returns:
Type
Boolean