A method to convert an argument to an integer suitable for use as the length of an array-like object. This method follows ECMAScript's specification for the 'ToLength' abstract operation.
npm install es-abstract-to-lengthA method to convert an argument to an integer suitable for use as the length of
an array-like object. This method follows ECMAScript's specification for the
'ToLength' abstract operation.
Currently, this module only supports the ES2017 (ES8) specification.
``
npm install es-abstract-to-length
`javascript
var toLength = require('es-abstract-to-length')
console.log(toLength(-3.14)) // => 0
console.log(toLength(3.14)) // => 3
console.log(toLength(42)) // => 42
console.log(toLength("9001")) // => 9001
console.log(toLength(null)) // => 0
console.log(toLength(false)) // => 0
console.log(toLength(true)) // => 1
console.log(toLength("foo")) // => 0
console.log(toLength({})) // => 0
console.log(toLength([])) // => 0
console.log(toLength(-Infinity)) // => 0
console.log(toLength(Infinity)) // => 9007199254740991
`
- API
- ECMAScript Specification References
The abstract operation ToLength converts argument to an integer suitable for use
as the length of an array-like object.
A Number value is returned.
A TypeError exception may be thrown for arguments that are Symbols or ObjectsvalueOf
that lack a method or a toString method capable of returning a
non-object value.
#### argument
Type: *`
The value to convert.
- es-abstract: a single library
for multiple ECMAScript abstract operations.