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inspect-with-kind
Advanced tools
util.inspect
with additional type information
const {inspect} = require('util');
const inspectWithKind = require('inspect-with-kind');
inspect([1, 2, 3]); //=> '[ 1, 2, 3 ]'
inspectWithKind([1, 2, 3]); //=> '[ 1, 2, 3 ] (array)'
npm install inspect-with-kind
const inspectWithKind = require('inspect-with-kind');
value: any type
options: Object
(util.inspect
options)
Return: string
Almost the same as util.inspect
, but:
boolean
, string
, number
, bigint
, Array
, RegExp
, Date
, arguments
or a plain Object
.breakLength
option defaults to Infinity
.maxArrayLength
option defaults to 10
.const util = require('util');
const inspectWithKind = require('inspect-with-kind');
// appends type info
util.inspect(1); //=> '1'
inspectWithKind(1); //=> '1 (number)'
util.inspect('1'); //=> '\'1\''
inspectWithKind('1'); //=> '\'1\' (string)'
// doesn't appends type info, because <Buffer ...> clearly expresses what it is
util.inspect(Buffer.from('1')); //=> '<Buffer 31>'
inspectWithKind(Buffer.from('1')); //=> '<Buffer 31>'
// omits stack trace
util.inspect(new Error('error!')); //=> 'Error: error!\n at repl:1:14\n at ContextifyScript ...'
inspectWithKind(new Error('error!')); //=> 'Error: error!'
This module is useful for making TypeError
error messages in your Node.js library.
const inspectWithKind = require('inspect-with-kind');
module.exports = function reverse(v) {
if (typeof v !== 'boolean') {
throw new TypeError(`Expected a Boolean value, but got ${inspectWithKind(v)}.`);
}
return !v;
};
const reverse = require('./reverse.js');
reverse(/true/); // TypeError: Expected a Boolean value, but got /true/ (regexp).
ISC License © 2017 Shinnosuke Watanabe
FAQs
`util.inspect` with additional type information
We found that inspect-with-kind demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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