19 lines
497 B
JavaScript
19 lines
497 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var $TypeError = require('es-errors/type');
|
||
|
|
|
||
|
|
var callBound = require('call-bound');
|
||
|
|
|
||
|
|
var $dataViewByteLength = callBound('DataView.prototype.byteLength', true);
|
||
|
|
|
||
|
|
var isDataView = require('is-data-view');
|
||
|
|
|
||
|
|
// node <= 0.10, < 0.11.4 has a nonconfigurable own property instead of a prototype getter
|
||
|
|
/** @type {import('.')} */
|
||
|
|
module.exports = $dataViewByteLength || function byteLength(x) {
|
||
|
|
if (!isDataView(x)) {
|
||
|
|
throw new $TypeError('not a DataView');
|
||
|
|
}
|
||
|
|
|
||
|
|
return x.byteLength;
|
||
|
|
};
|