javascript error checker

Js data verification, jsemail verification, jsurl verification, js length verification, js digital verification, etc. Some time ago I wrote a javascript data verification, js email verification, js url verification, js length verification, js in the pop-up dialog box such as digital verification, however, the unfriendly method is not very popular now, so I have rewritten a layer form with better encapsulation and friendliness. Share it with you. If yo

In Chrome, you may encounter such a small problem. Enter a random object, such as {Name: ' Wang Nima ', age:20}, will be an error. Before, and never thought about why.Today, just see Blog Park has bo friend article, by the way record.In JavaScript,: There are three kinds of functions, presumably everyone knows, its 13-dollar expression true? A:B, the second is used in the case statement in the switch case,

This article is my Learning JavaScript process in the collection and collation of some of the error-prone knowledge points, will be from the scope of variables, type comparison, this point, function parameters, closure problems and object copy and assignment of these 6 aspects of the introduction and interpretation of the easy-to-digest, which also involved some ES6 knowledge points.JavaScript knowledge poi

ObjectiveThis article is my Learning JavaScript process in the collection and collation of some of the error-prone knowledge points, will be from the scope of variables, type comparison, this point, function parameters, closure problems and object copy and assignment of these 6 aspects of the introduction and interpretation of the easy-to-digest, which also involved some ES6 knowledge points.JavaScript know

An error occurred running the ASP. NET Core program as follows:Chrome script debugging is enabled in Visual Studio To set breakpoints for Javascript/typescript in Visual Studio Automatic interrupt Error in script Opening the developer tool in Chrome causes the script debugging session to stop Learn more about Chrome debugging in Visual StudioLaunchin

This question is displayed on stackoverflow, the famous Q A website.I have also seen this question about JavaScript before, but I have no in-depth understanding. Today I have seen the answer on StackOverflow. It feels good. I will write it down and share it with you.The problem is described as follows::Copy codeThe Code is as follows:Console. log (10 .. toString (); // 10Console. log (10. toString (); // SyntaxError: Unexpected token ILLEGAL Why is t

numbers here are the elements in the array; Data type conversions and Nan: Nan = = Nan: The return is a false parseint (' 123abc '): Return is 123 parseint (' abc123 '): Nan is returned Number (' 123abc '): Nan is returned Number (' abc123 '): Nan is returned Decimal Arithmetic accuracy problem: In JavaScript, there are always a number of decimal places in the operation of data with dec

JavaScript errorTry Catch throwTry to test the code block for errors.Catch handling error.Throw creates or throws an exception, which can be a JavaScript string, a number, a logical value, or an object.Finally the statement executed after the try statement completes, regardless of whether the exception is thrown or caught.functionmsg () {Try{ varx = "AAA"; if(x = = "") { Throw"is e

MyEclipse project, for the JS file annoying error650) this.width=650; "src=" http://pic002.cnblogs.com/images/2012/1692/2012062806533663.jpg "style=" border:0px; "/ >You can modify this, right-click the project-"Properties-" Builders, uncheck the JavaScript validator option650) this.width=650; "src=" http://pic002.cnblogs.com/images/2012/1692/2012062806501038.jpg "style=" border:0px; "/ >Error JS file is st

Reference Blog: http://blog.csdn.net/zhu7478848/article/details/53388582In Internet Explorer, a Nan error occurs after the JavaScript string is converted to date, but there is no problem with other browsers.Therefore, the format of the string is transformed.var date = new Date ("2016-10-11") under IE date is Nan, while other browsers are normal.String modified into 2016/10/11var date = new Date ("2016-10-11

) { Event.preventdefault (); } Else { Event.returnvalue=false; } },// The last attribute Preventdefault is completed with a comma, error }Result: Run the Times error in IE (where event.js 54 lines are the last comma's next line, which is actually the result of a comma; the 10th line of test.html is because the Eventutil.addeventhandler method in Event.js is called)Wor

ProblemIn JavaScript, where integers and floating-point numbers belong to the Number data type (one of the simple data types), we often find that the result of printing 1.0 such a float is not 1 1.0 , because the memory space that holds the floating-point numbers is twice times the value of the saved integer. So ECMAScript will lose no chance to convert the floating-point number to an integer.This situation is a bit uncomfortable for obsessive-compuls

Preventdefault completed with a comma, error } Results: Running the times in IE wrong (where Event.js's 54 lines are the next line of the last comma, which is actually the result of commas; the 10th line of test.html is because the Eventutil.addeventhandler method in Event.js is invoked) Solution: No doubt, remove the last comma. ⑤ or spelling errors, ie block event bubbling properties cancelbubble, write a more s, written cancelbubbles. Resu

/** * @param {string} errormessage error message * @param {string} Scripturi Error file * @param {Long} linenu Mber the line number of the error code * @param {Long} columnnumber the column number of the error code * @param {Object} errorobj error details, anything */Win

The asperror object has zero (0) methods, nine (9) properties, zero (0) events, and zero (0) collections. Aspcode Aspdescription Category Column Description File Line Number Source The way you access the asperror properties is with a server method. Yeah, I know; it doesn't make sense. Start with something like VaR myerror = server. getlasterror () And then you can a

Javascript always reports an error in IE-an object is missing! Lt ;? Phpquery0 = mssql_query ("select nbsp; * nbsp; from nbsp; tb_xm nbsp; where nbsp; xm_pcid = '1 '"); $ y = 1 Javascript always reports an error in IE -- an object is missing! Query0 = mssql_query ("select * from tb_xm where xm_pcid = '1 '"); $ Y

It is mentioned that "Dom is the UTF-8 of the article code, if the JS library is not the separation of independent JS files, but included in the Dom, this problem will not appear. However, the separated JS file is not UTF-8 encoding, is added to the DOM library of UTF-8 encoding, Chinese appears garbled characters, and affect the quotation marks, so that the browser can not judge the end of the string. Solve the transformation method is very simple, JS files can be saved as UTF-8 encoding format

Rails4.1.6 startup error: cocould not find a JavaScript runtime My computer system and Rails version: CentOS 7, Rails4.1.6, Ruby2.0.0 1. An error is reported after the server is started. # Rails server When you start a new project, the following error occurs: /Home/oss /. gem/ruby/gems/execjs-2.2.1/lib/execjs/runtimes.

, and contains the line comment ("//"), it will change the original logic, the code after the line comment will be commented out, will not be executed.For example, the following example encodes the script code and then sends it to the background execution (as in node. js), where it is simple to decode:Run resultsYou can see the loss of line breaks in the string script, the code mess, especiallyChart.bounds (0, 0, 100%,100%);This line is connected to the following line, assuming the code is execu

Let's look at a piece of JavaScript with nested two-layer functions. Code : Copy code Code: var me = { Name: 'jimbor ', Blog: 'http: // jmedia.cn /', Saymyname: function (){ VaR pre = 'My name is :'; Function displayname (){ Alert (pre + this. Name ); } Displayname (); } } Me. saymyname (); From the code point of view, we want to display the name attribute of me through the call of saymyname (), that is, my name is: jimbor. But the browser's executi