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James M Snell
85ab4a5f12
Several changes:
* Soft-Deprecate Buffer() constructors
* Add `Buffer.from()`, `Buffer.alloc()`, and `Buffer.allocUnsafe()`
* Add `--zero-fill-buffers` command line option
* Add byteOffset and length to `new Buffer(arrayBuffer)` constructor
* buffer.fill('') previously had no effect, now zero-fills
* Update the docs
PR-URL: https://github.com/nodejs/node/pull/4682
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
63 lines
875 B
JavaScript
63 lines
875 B
JavaScript
'use strict';
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require('../common');
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var assert = require('assert');
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var buffer = Buffer.from([1, 2, 3, 4, 5]);
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var arr;
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var b;
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// buffers should be iterable
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arr = [];
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for (b of buffer)
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arr.push(b);
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assert.deepEqual(arr, [1, 2, 3, 4, 5]);
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// buffer iterators should be iterable
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arr = [];
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for (b of buffer[Symbol.iterator]())
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arr.push(b);
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assert.deepEqual(arr, [1, 2, 3, 4, 5]);
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// buffer#values() should return iterator for values
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arr = [];
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for (b of buffer.values())
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arr.push(b);
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assert.deepEqual(arr, [1, 2, 3, 4, 5]);
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// buffer#keys() should return iterator for keys
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arr = [];
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for (b of buffer.keys())
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arr.push(b);
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assert.deepEqual(arr, [0, 1, 2, 3, 4]);
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// buffer#entries() should return iterator for entries
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arr = [];
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for (b of buffer.entries())
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arr.push(b);
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assert.deepEqual(arr, [
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[0, 1],
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[1, 2],
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[2, 3],
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[3, 4],
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[4, 5]
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]);
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