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Immediately invoked function expressions may be written in a number of different ways. [3] A common convention is to enclose the function expression – and optionally its invocation operator – with the grouping operator, [4] in parentheses, to tell the parser explicitly to expect an expression.
Some browsers allow you to automatically execute your JavaScript code on specific web pages. This way you do not have to be logged in to Wikipedia. One example is Tampermonkey. However, making user scripts work with one of these extensions might require some modifications to the script code.
JsPHP is designed to provide a familiar and powerful programming interface for JavaScript programmers with a background in, or integrating with, PHP. JsPHP is a useful supplement to other JavaScript libraries and can be used in Ajax applications and dynamic web pages and web applications.
The return value from a function is provided within the function by making an assignment to an identifier with the same name as the function. [5] However, some versions of Pascal provide a special function Exit(exp); that can be used to return a value immediately from a function, or, without parameters, to return immediately from a procedure. [6]
Functions can be defined inside code blocks, permitting a run-time decision as to whether or not a function should be defined. There is no concept of local functions. Function calls must use parentheses with the exception of zero argument class constructor functions called with the PHP new operator, where parentheses are optional.
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