[Javascript] A tool for JS debugging

最新推荐文章于 2021-08-03 14:50:50 发布

moky

最新推荐文章于 2021-08-03 14:50:50 发布

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分类专栏： Javascript 文章标签： debugging javascript function menu date class

本文链接：https://blog.youkuaiyun.com/moky/article/details/4365359

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/*----------------------------------------------------------------------------/ | Description : a write-log class for debugging. | | Copyright(c) : Tencent Inc. | |-----------------------------------------------------------------------------| | Changes log | |-------------+---------------------------------------------------------------| | 2006/06/03 | Create by Moky (mokymo@tencent.com) | |-------------+---------------------------------------------------------------| | Created 2006/06/03 last updated 2006/06/03 | /----------------------------------------------------------------------------*/ function CWinLog() { private: this.m_pLogWin = null; } CWinLog.prototype.Init = function(pLogWin) { var ret = 0; if (!pLogWin) { try { ret = this.Destroy(); ret = this.Create(); } catch(e) { ret = -1; } } else { this.m_pLogWin = pLogWin; } if (ret != 0) return -1; if (!this.m_pLogWin) return -1; return 0; } CWinLog.prototype.Create = function(sURL, sName, sFeatures, bReplace) { if (!sURL) sURL = ""; if (!sName) sName = "log_win"; if (!sFeatures) sFeatures = "menu=no,status=no,scrollbars=yes"; if (!bReplace) bReplace = false; var pop_win = null; try { this.Destroy(); pop_win = window.open(sURL, sName, sFeatures, bReplace); this.m_pLogWin = pop_win; this.m_pLogWin.document.writeln('<title>Javascript Log (v1.0 by Moky)</title>'); this.m_pLogWin.document.writeln('<body bgcolor="#333333"><pre>'); this.m_pLogWin.document.writeln('<font color="#CCCCCC" style="font-color:#CCCCCC; font-size:16px; font-family:" mce_style="font-color:#CCCCCC; font-size:16px; font-family:"Courier New">'); } catch(e) { return -1; } window.focus(); if (!this.m_pLogWin) return -1; return 0; } CWinLog.prototype.Destroy = function() { if (!this.m_pLogWin) return -1; try { this.m_pLogWin.close(); } catch(e) { return -1; } return 0; } CWinLog.prototype.WriteLog = function() { if (!this.m_pLogWin) return -1; var now = new Date(); var h = now.getHours(); var m = now.getMinutes(); var s = now.getSeconds(); var ms = now.getMilliseconds(); if (h < 10) h = "0" + h; if (m < 10) m = "0" + m; if (s < 10) s = "0" + s; if (ms < 10) ms = "00" + ms; else if (ms < 100) ms = "0" + ms; var line_head = "[" + h + ":" + m + ":" + s + "." + ms + "] "; var arg = ""; for (var x = 0; x < arguments.length; x++) { arg += arguments[x]; } arg = arg.replace(/</g, "<"); try { this.m_pLogWin.document.writeln(line_head, arg); this.m_pLogWin.scrollBy(0, 256); } catch(e) { return -1; } return 0; } var g_Log = new CWinLog(); //发布时需要关闭log，把下面一行注释掉即可 g_Log.Init(); /* //test... g_Log.WriteLog("---- starting ----"); g_Log.WriteLog("Hello world!", " -- ", 9527); */