NodeJs获取函数名称和函数操作整理

Posted 2020-08-19 有我在

var aa = function () {
    log("xxxx");
};
aa();

var model = {};
model.test = function () {
    log("model.test");
};
model.test();

function log(msg) {
    var info = stackInfo();
    var method = info[‘method‘];
    var file = info[‘file‘];
    var line = info[‘line‘];
    console.log("(" + method + ") <" + file + ":" + line + "> " + msg);
}

// 这里是主要方法
function stackInfo() {
    var path = require(‘path‘);
    var stackReg = /at\s+(.*)\s+\((.*):(\d*):(\d*)\)/i;
    var stackReg2 = /at\s+()(.*):(\d*):(\d*)/i;
    var stacklist = (new Error()).stack.split(‘\n‘).slice(3);
    var s = stacklist[0];
    var sp = stackReg.exec(s) || stackReg2.exec(s);
    var data = {};
    if (sp && sp.length === 5) {
        data.method = sp[1];
        data.path = sp[2];
        data.line = sp[3];
        data.pos = sp[4];
        data.file = path.basename(data.path);
    }

    return data;
}

输出格式内容：

(aa) <c.js:6> xxxx
(Object.model.test) <c.js:12> model.test