Dumping whole array: console.log and console.dir output “… NUM more items]”

问题

I am trying to log a long array so I can copy it quickly in my terminal. However, if I try and log the array it looks like:

['item',
 'item',
  >>more items<<<
  ... 399 more items ]

How can I log the entire array so I can copy it really quickly?

回答1:

Setting maxArrayLength

There are a few methods all of which require setting maxArrayLength which otherwise defaults to 100.

1. Provide the override as an option to console.log or console.dir

   console.log( myArry, {'maxArrayLength': null} );
   

2. Set util.inspect.defaultOptions.maxArrayLength = null; which will impact all calls to console.log and util.format

3. Call util.inspect yourself with options.

   const util = require('util')
   console.log(util.inspect(array, { maxArrayLength: null }))
   

回答2:

Michael Hellein's answer didn't work for me, but a close version did:

console.dir(myArray, {'maxArrayLength': null})

This was the only solution that worked for me as JSON.stringify() was too ugly for my needs and I didn't need to write the code to print it out one at a time.

回答3:

What's wrong with myArray.forEach(item => console.log(item))?

回答4:

Using console.table

Available in Node v10+, and all modern web-browsers, you can use console.table() instead, which will output a beautiful utf8 table where each row represents an element of the array.

> console.table([{ a: 1, b: 'Y' }, { a: 'Z', b: 2 }], ['a']);

┌─────────┬─────┐
│ (index) │  a  │
├─────────┼─────┤
│    0    │  1  │
│    1    │ 'Z' │
└─────────┴─────┘

回答5:

Just found that option maxArrayLength works well with console.dir too:

console.dir(array, {depth: null, colors: true, maxArrayLength: null});

来源：https://stackoverflow.com/questions/41669039/dumping-whole-array-console-log-and-console-dir-output-num-more-items