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Versions: 26
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Contents
import { inspectList, inspectProperty, truncate, truncator } from './helpers.js';
const getArrayName = (array) => {
// We need to special case Node.js' Buffers, which report to be Uint8Array
// @ts-ignore
if (typeof Buffer === 'function' && array instanceof Buffer) {
return 'Buffer';
}
if (array[Symbol.toStringTag]) {
return array[Symbol.toStringTag];
}
return array.constructor.name;
};
export default function inspectTypedArray(array, options) {
const name = getArrayName(array);
options.truncate -= name.length + 4;
// Object.keys will always output the Array indices first, so we can slice by
// `array.length` to get non-index properties
const nonIndexProperties = Object.keys(array).slice(array.length);
if (!array.length && !nonIndexProperties.length)
return `${name}[]`;
// As we know TypedArrays only contain Unsigned Integers, we can skip inspecting each one and simply
// stylise the toString() value of them
let output = '';
for (let i = 0; i < array.length; i++) {
const string = `${options.stylize(truncate(array[i], options.truncate), 'number')}${i === array.length - 1 ? '' : ', '}`;
options.truncate -= string.length;
if (array[i] !== array.length && options.truncate <= 3) {
output += `${truncator}(${array.length - array[i] + 1})`;
break;
}
output += string;
}
let propertyContents = '';
if (nonIndexProperties.length) {
propertyContents = inspectList(nonIndexProperties.map(key => [key, array[key]]), options, inspectProperty);
}
return `${name}[ ${output}${propertyContents ? `, ${propertyContents}` : ''} ]`;
}
Version data entries
26 entries across 26 versions & 1 rubygems