TypeError: lts.enableLongStackTrace is not a function at Object.<anonymous> (/Users/kdepp/projects/me/lst/test/spec.js:3:5) at Module._compile (module.js:435:26) at Object.Module._extensions..js (module.js:442:10) at Module.load (module.js:356:32) at Function.Module._load (module...
参考StackOverflow 上关于“What's a good way to extend Error in JavaScript?”的讨论。 ES6 自定义错误类 警告: Babel 7 之前的版本可以处理 CustomError 类方法,但类方法需要使用 Object.defineProperty() 定义。否则,旧版本的 Babel 和其他转译器在没有额外配置的情况下将无法正确处理下面的代码。 备注: 在...
1、内部脚本写在body里面好 外部脚本放在head里面引用 2、基本数据类型存在堆内存中 引用类型存在栈内存中,堆里面只存地址 3、基本数据类型:Number包括整形和浮点型 String字符串数据类型 Boolean:true false Undefind:Undefined 数据类型,如果声明了某个变量但是没进行赋值则该变量时Undefind类型 var a; null:占一个...
varitems1=newArray(-20);//抛出 RangeErrorvaritems2=newArray(Number.MAX_VALUE);//抛出 RangeErrorRangeError 在 JavaScript 中发生得不多。 ReferenceError:在找不到对象的情况下,会发生 ReferenceError(这就是著名的"object expected"浏览器错误的原因)。通常,在访问不存在的变量时,就会发生这种错误,例如: varob...
JavaScriptError Reference Error Object The Error object provides error information when an error occurs. Example In this example we have written "alert" as "adddlert" to deliberately produce an error. Return the error name and a description of the error: ...
四、Object 1//tostring方法其实是object的方法,而其他所有对象都能访问到该属性2//为什么呢。万物都继承在object34//var obj = new Object()5for(varobjinObject)6{7console.log(obj);8}
Generate an HttpError object where:statusCode - an HTTP error code number. Must be greater or equal 400 message - optional message string. options - extra options options.debug - additional error debug info set to error.debug property.
When an error happens in a Document Object Model (DOM) object that allows for error handling (for example, the <script>, <style> or <img> elements), the onerror event for that element is raised. For errors in the JavaScript call stack, the ...
and does not report specific objects in the object tree. The second parameter is an instance of theErrorEventArgsobject or one of its derived objects,ParserErrorEventArgsorRuntimeErrorEventArgs. Because JavaScript is prototype-based, you could first determine the errorType that is available for all ...
at Microsoft.JSInterop.JSObjectReferenceExtensions.InvokeVoidAsync(IJSObjectReference jsObjectReference, String identifier, Object[] args) at Microsoft.FluentUI.AspNetCore.Components.FluentDivider.OnAfterRenderAsync(Boolean firstRender) in /_/src/Core/Components/Divider/FluentDivider.razor.cs:line 38 ...