我有使用Python编写的自定义命令行,它使用"print"语句打印其输出.我通过生成子进程并使用child.stdin.write方法向它发送命令从Node.js中使用它.这是来源:
var childProcess = require('child_process'),
spawn = childProcess.spawn;
var child = spawn('./custom_cli', ['argument_1', 'argument_2']);
child.stdout.on('data', function (d) {
console.log('out: ' + d);
});
child.stderr.on('data', function (d) {
console.log('err: ' + d);
});
//execute first command after 1sec
setTimeout(function () {
child.stdin.write('some_command' + '\n');
}, 1000);
//execute "quit" command after 2sec
//to terminate the command line
setTimeout(function () {
child.stdin.write('quit' + '\n');
}, 2000);
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现在问题是我没有在流动模式下接收输出.我希望在打印后立即从子进程获取输出,但只有在子进程终止时才会收到所有命令的输出(使用自定义cli的quit命令).
我正在使用 jshint。谁能告诉我为什么它将“for”关键字视为全局变量?
创建全局“for”变量。应该是 'for (var items ...'
这是循环:
//items and properties are defined above...
var items = null, properties = someObject;
//code here is properly terminated with ; "semicolon"
for (items in properties) {
if (properties.hasOwnProperty(items)) {
//some code here...
}
}
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