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demo_met_buffer_allocunsafe.js:
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var buf = Buffer.allocUnsafe(15);
/*The value of an unsafe buffer is not emptied, and can contain data from older buffers*/
console.log(buf);
C:\Users\My Name>node demo_met_buffer_allocunsafe.js
<Buffer 02 00 00 00 a7 01 00 00 10 53 49 90 02 a7 01>