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Item 37: Never redefine the inherited default parameter value of a function (the default parameter value obtained through inheritance)
By Scott Meyers
Translator: fatalerror99 (itepub's nirvana)
Release: http://blog.csdn.net/fatalerror99/
We started
Transferred from Liaoche's official website:
The default parameters are useful, but improper use can also fall into the pit. The default parameter has a maximum pit: The value of the default parameter may change unconsciously in the process of
File: mfunentry. BasFunction: encapsulate the callback function -- construct an entry in the form of a common function (a function without the this pointer in the parameter) for the object method (the function with the this pointer in the parameter )
1. The normal parameter is the same as the parameters passed in the following function passed in the function, there is no default value1 def F (a): 2 A = a + 13 return a45 b=f (3)6Print (b)2. Specify parameters1 # If you pass in order like
Introduction to PHP default parameter functions
In PHP, the default invocation of a function is supported, which is to specify a default value for the parameter. The previous section describes the reference parameter function of the PHP function,
Default variable parameter constant parameter variable parameter input and output parameter 7.4.4 for external parameters in swift language set default value for external parameterDevelopers can also set default values for external parameters. At
This article describes the default parameters of the ECMAScript6 function. For more information, see the new features in the language update, which are extracted from the needs of millions of developers, standard adoption can reduce the programmer's
Special case of the Swift 1.1 language function parameter local parameter name external parameter name 7.4 function parameter special caseWhen a declaration defines an argument function, a parameter name is defined for each parameter of the function.
This article describes the default parameters of the ECMAScript6 function. For more information, see the new features in the language update, which are extracted from the needs of millions of developers, standard adoption can reduce the programmer's
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Clause 24: Carefully select between function overloading and setting parameter defaults
The reason for confusion about function overloading and setting parameter
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