是否可以在 node 中同步读取stdin.js?因为我正在用JavaScript编写一个brainfuck to JavaScript编译器(只是为了好玩).Brainfuck支持需要同步执行的读取操作.
我试过这个:
const fs = require('fs');
var c = fs.readSync(0,1,null,'utf-8');
console.log('character: '+c+' ('+c.charCodeAt(0)+')');
但这只会产生这样的输出:
fs:189
var r = binding.read(fd, buffer, offset, length, position);
^
Error: EAGAIN, Resource temporarily unavailable
at Object.readSync (fs:189:19)
at Object.<anonymous> (/home/.../stdin.js:3:12)
at Module._compile (module:426:23)
at Module._loadScriptSync (module:436:8)
at Module.loadSync (module:306:10)
at Object.runMain (module:490:22)
at node.js:254:10