这不是最优雅的解决方案,但通过将“curr_line”移动到全局范围,我们可以在“on key”事件之间保持它的持久性。
var term = new Terminal();
term.open(document.getElementById('terminal'));
term.prompt = () => {
term.write('\r\n$ ');
};
term.writeln('This is a shell emulator.');
term.prompt();
// Move curr_line outside of async scope.
var curr_line = '';
term.on('key', function(key, ev) {
const printable = !ev.altKey && !ev.altGraphKey && !ev.ctrlKey && !ev.metaKey;
if (ev.keyCode === 13) {
term.prompt();
console.log(curr_line);
curr_line = '';
} else if (ev.keyCode === 8) {
// Do not delete the prompt
if (term.x > 2) {
curr_line = curr_line.slice(0, -1);
term.write('\b \b');
}
} else if (printable) {
curr_line += ev.key;
console.log(curr_line, ev.key)
term.write(key);
}
});
term.on('paste', function(data) {
term.write(data);
});
在我寻找类似解决方案的过程中,您的问题出现了,因此感谢您提交该问题!:)