Slice Buffer Range
NodeJS
Medium
4 views
Problem Description
Read text, slice first 4 bytes, and print it.
Input Format
stdin: text.
Output Format
Print text.
Constraints
Assume ASCII for simplicity.
Official Solution
const fs = require('fs');
const txt = fs.readFileSync(0, 'utf8').trim();
if (!txt) process.exit(0);
const b = Buffer.from(txt, 'utf8');
console.log(b.slice(0, 4).toString('utf8'));
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