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node.js中的console.trace方法使用说明

时间:2024-3-2 11:00     作者:韩俊     分类: Javascript


方法说明:

向标准错误流输出当前的调用栈。

语法:

console.trace(label)

接收参数:

label

例子:

console.trace();

//运行结果:

Trace:

     at Object.<anonymous> (/home/byvoid/consoletrace.js : 1: 71)

     at Module._compile (module.js:441:26)

     at Object..js (module.js:459:10)

     at Module.load (module.js:348:31)

     at Function._load (module.js:308:12)

     at Array.0 (module.js:479:10)

     at EventEmitter._tickCallback (node.js:192:40)

源码:

Console.prototype.trace = function() {

  // TODO probably can to do this better with V8's debug object once that is

  // exposed.

  var err = new Error;

  err.name = 'Trace';

  err.message = util.format.apply(this, arguments);

  Error.captureStackTrace(err, arguments.callee);

  this.error(err.stack);

};

标签: javascript

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