Javascript debug: Difference between revisions
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** {{IE}} v.9: [http://msdn.microsoft.com/en-US/library/ie/gg589530(v=vs.85).aspx Using the F12 Tools Console to View Errors and Status (Windows)] / [http://msdn.microsoft.com/zh-tw/library/ie/gg589530(v=vs.85).aspx 使用 F12 工具主控台檢視錯誤和狀態 (Windows)] {{exclaim}} not {{IE}} v.8 | ** {{IE}} v.9: [http://msdn.microsoft.com/en-US/library/ie/gg589530(v=vs.85).aspx Using the F12 Tools Console to View Errors and Status (Windows)] / [http://msdn.microsoft.com/zh-tw/library/ie/gg589530(v=vs.85).aspx 使用 F12 工具主控台檢視錯誤和狀態 (Windows)] {{exclaim}} not {{IE}} v.8 | ||
* [http://blog.longwin.com.tw/2007/07/javascript_var_dump_2007/ Javascript var_dump function | Tsung's Blog] | * [http://blog.longwin.com.tw/2007/07/javascript_var_dump_2007/ Javascript var_dump function | Tsung's Blog] | ||
* [https://www.w3schools.com/js/js_json_stringify.asp JSON.stringify()] "Convert a JavaScript object into a string" {{access | date = 2017-09-11}} | * [https://www.w3schools.com/js/js_json_stringify.asp JSON.stringify()][https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify] "Convert a JavaScript object into a string" {{access | date = 2017-09-11}} | ||
DOM | DOM | ||
Revision as of 13:43, 11 September 2017
<< Testing: Javascript
methods / functions
Print message
- alert() Method: Window alert() Method equivalent: window.alert("some message...");
- Is there an equivalent for var_dump (PHP) in Javascript? - Stack Overflow
- console.log()
- Firefox
: Firebug and Logging : Firebug, 利用Firebug的console功能作JavaScript偵錯 - iT邦幫忙::IT知識分享社群 for Firefox 
not work for the Firebug Lite for Google Chrome(tested version: 1.4.0.11967 ) - Chrome
: Using the Console - Chrome Developer Tools — Google Developers Enter the javascript scripts in the console ( after the > symbol) directly. - IE
v.9: Using the F12 Tools Console to View Errors and Status (Windows) / 使用 F12 工具主控台檢視錯誤和狀態 (Windows) not IE v.8
- Firefox
- Javascript var_dump function | Tsung's Blog
- JSON.stringify()[1] "Convert a JavaScript object into a string" [Last visited: 2017-09-11]
DOM
- 如果是進行 DOM 操作，可以將選定的 DOM 元素標上顏色，確認有選到。 ex: using .addClass() | jQuery API Documentation
Data type
- isNaN() Function, isFinite() Function, typeof variable
Browser tool
- javascript - How do I view events fired on an element in Chrome DevTools? - Stack Overflow on Chrome
Browser cache issue
tools
- The Online Lint
- JSLint,The JavaScript Code Quality Tool
- desktop editor: Sublime Text + package: JSLint[1]
- JS Bin - Collaborative JavaScript Debugging
allow to download