nodejs child_process 范围问题
[英]nodejs child_process scope issue
问题描述
I am using child_process(fork) of nodejs then I send data to a particular file and receive data but not console that data after receiving of process execution
我正在使用 nodejs 的 child_process(fork) 然后我将数据发送到特定文件并接收数据但在接收到进程执行后不控制台该数据
first.js第一个.js
var cp = require('child_process');
var child = cp.fork('./s/abc.js');
child.send({data:'this come from parent process'});
var x ;
child.on('message', function(m) {
console.log(m);
x = m;
});
console.log(m);
console.log(x);
abc.js (./s/abc.js) abc.js (./s/abc.js)
process.send({data:'this come from child process'});
var x ;
process.on('message', function(m) {
console.log(m);
});
1 个解决方案
解决方案1
0 2021-07-20 17:44:08
use function to console value after scope end作用域结束后使用函数来控制值
first.js第一个.js
var cp = require('child_process');
var child = cp.fork('./s/abc.js');
child.send({data:'this come from parent process'});
var x ;
child.on('message', function(m) {
console.log(m);
callTempFun(m);
});
function callTempFun(m){
console.log(m);
}
abc.js (./s/abc.js) abc.js (./s/abc.js)
process.send({data:'this come from child process'});
var x ;
process.on('message', function(m) {
console.log(m);
});
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