Java

Coding anything requires a lot more effort than many believe. The bigger the project, the more difficult to code; you have to take performance, sustainability, updatability, security and so much more into account.

Below, you can find out 7 KILLER tips for making sure your Javascript code is lean and bulletproof:

Performance

• Try to place as many scripts as you can at the bottom of your document. If you have a script that’s the only purpose is to add some sort of functionality, like when a button is clicked or a form is submitted, place it at the bottom. A website will load a Javascript file at the top before it renders the rest of the page, so it’s best to get the content to the user as quickly as possible.

JavaScript and jQuery both tend to be client-side scripting libraries employed for tasks for examples like validation checking, creating visually attractive elements such as fancy routing menus and so on. Since the objective of both the actual technologies may be the same, the option of utilizing a particular technology lies within the thinking of the programmer. However recently, jQuery is actually quickly gaining interest over JavaScript. Here we can review some of the main 3 differences between these two scripting languages.

Variables are used to store values. Variable names can have uppercase letters (A-Z), lowercase letters (a-z), digits (0-9), underscore ( _). The first character should be an alphabet or an underscore. Variables cannot have blank spaces or other punctuation marks. Variables are case sensitive. Variables names can be of any length. Variables are defined with the optional keyword var. Unlike other programming languages,JavaScript does not require you to specify the type of data contained in a variable. The same variable can hold different values such as String, Integer, Boolean, etc.,

Groovy is an object-oriented programming language for the Java platform. People who don’t like to use Java coding can use Groovy for their web development projects. As Groovy is mostly used by Java developers, the team behind this programming language tried to keep it as simple as possible so that newbie coders with a Java background don’t get confused. However, there are some key differences between Java and Groovy. Read the following paragraphs to know about those differences.

JavaScript performs automatic type conversion when used in expressions and statements. For example, if you try to add a string value “Java” with a numeric value 4, then the numeric value 4 is converted to a string “4” and appends it to the string “Java”.

The result of the expression would be “Java 4”.

How type conversion is done?

Whenever an expression is evaluated the expression is parsed into its component unary and binary expressions based upon the order of preference of the operators. Then the component unary and binary expressions are evaluated. The expressions are evaluated according to the operators involved. If an operand takes a value of a type that is different from the type of the operand, then the operand is converted to a type that is valid for the operator.