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doc: modernize and fix code examples in util.md

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* Remove useless constructor.

* Use template literals.

* Update code example.
  Now all arrays with just holes are outputted the same way.
  In the fixed example, it was `[ <101 empty items> ]` twice.

PR-URL: https://github.com/nodejs/node/pull/13298
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit is contained in:
Vse Mozhet Byt 2017-05-30 17:03:00 +03:00
parent e824c75c3e
commit 862bf1bbc2
1 changed files with 3 additions and 6 deletions
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9
doc/api/util.md
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@ -196,9 +196,6 @@ ES6 example using `class` and `extends`
const EventEmitter = require('events');
class MyStream extends EventEmitter {
constructor() {
super();
}
write(data) {
this.emit('data', data);
}
@ -329,8 +326,8 @@ class Box {
// Five space padding because that's the size of "Box< ".
const padding = ' '.repeat(5);
const inner = util.inspect(this.value, newOptions)
.replace(/\n/g, '\n' + padding);
return options.stylize('Box', 'special') + '< ' + inner + ' >';
.replace(/\n/g, `\n${padding}`);
return `${options.stylize('Box', 'special')}< ${inner} >`;
}
}
@ -392,7 +389,7 @@ option properties directly is also supported.
```js
const util = require('util');
const arr = Array(101);
const arr = Array(101).fill(0);
console.log(arr); // logs the truncated array
util.inspect.defaultOptions.maxArrayLength = null;