![]() What is the difference between exec () and test () methods in javascript? Explain call(), apply() and, bind() methods. What do you mean by Self Invoking Functions? Explain Higher Order Functions in javascript. What do you mean by strict mode in javascript and characteristics of javascript strict-mode? What is an Immediately Invoked Function in JavaScript? Explain passed by value and passed by reference. Is javascript a statically typed or a dynamically typed language? Explain Implicit Type Coercion in javascript. Difference between var and let keyword in javascript. Difference between “ = “ and “ = “ operators. Why do we use the word “debugger” in javascript? What are the different data types present in javascript? JavaScript Interview Questions for Freshers.If a global variable prompts is defined, is an object, and has elements 0 and 1 defined, the shell will use element 0 as the prompt and element 1 as the continuation prompt. This feature is now implemented in Rhino. Now the following top-level packages are available, like “java”, in the global scope: “javax”, “org”, “com”, “edu”, and “net”. Prior to 1.7R1, Java classes in packages starting with “java.” could be referenced directly, while classes in other packages would need to use the “Packages” object first. The statement is ignored if the debugger is not running or when compiled to Java bytecodes. ![]() debugger keywordįix bug 386997 - Need to support ‘debugger’ statementĪdding the ‘debugger’ keyword will now result in a breakpoint being hit when run in the Rhino debugger. This is primarily used to enforce instruction quotas for untrusted scripts. It’s now possible to request instruction callbacks for compiled scripts. Support for instruction threshold callbacks in compiled mode JDK 1.4 support will be dropped entirely from Rhino in a future release. js-14.jar is also in the binary distribution and can be built from source using ant. In order to support people running Rhino on JDK 1.4, we use Retrotranslator to produce js-14.jar, which is compatible with JDK 1.4. As a result, the js.jar in the binary distribution is not runnable with JDK 1.4. We now require at least JDK 1.5 in order to compile Rhino sources. Support for JDK 1.4 through separate JAR file Previously the XMLBeans implementation would be used if present in the classpath now it will be used only if DOM3 is not supported on the version of Java running Rhino (i.e., before JDK 1.5), or if explicitly specified by overriding ContextFactory.getE4xImplementationFactory(). DOM3 E4X implementation preferredĪs of Rhino 1.7R1, the E4X implementation based on DOM3 is now preferred over the XMLBeans implementation. This was done so as not to compromise backwards compatibility. Note that for (i in m.values()) will still iterate over the properties of the object returned by m.values(), i.e., the names of all the methods of $Values. Js> for (i in Iterator(m.values().iterator())) print(i) Js> for (i in Iterator(m.values())) print(i) In an extension to JavaScript 1.7, Rhino now supports creating JavaScript Iterators from and objects. Creating a JavaScript Iterator from a Java Iterable or Iterator If you are using the Rhino shell, you can specify -version 170 on the command line or call version(170) in code executed by the shell. To enable JavaScript 1.7 support, you must set the version as 170 using the tLanguageVersion() API call. JavaScript 1.7 supports the following features: JavaScript 1.7 featuresĪs of Rhino1.7R1, Rhino now supports the features of JavaScript 1.7. ![]() ![]() Support for instruction threshold callbacks in compiled mode.Support for JDK 1.4 through separate JAR file.Creating a JavaScript Iterator from a Java Iterable or Iterator.
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