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2025-09-14 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >
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What are the knowledge points of this article "what are the three declaration functions of JavaScript?" most people do not understand, so the editor summarizes the following, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "what are the three declaration functions of JavaScript?"
Three ways of declaring functions in JavaScript
1. Declarative function
Function functionName (arg1, arg2) {alert (arg1+arg2);}
2. Anonymous function
Var functionName1 = new Function ("arg1", "arg2", "alert (arg1 + arg2)")
3. Direct quantity function
FunctionName2 = function (arg1, arg2) {alert (arg1 + arg2);}
Three methods of function call
FunctionName ("1", "22")
FunctionName1 ("2", "11")
FunctionName2 ("Hello", "World")
Continue to read, you can also write like this, the first experience is very good
FunctionName1.love = "Hello World!"
Alert (functionName1.love)
FunctionName1.Test = function () {alert ("Test");}
FunctionName1.Test ()
The above is the content of this article on "what are the three declaration functions of JavaScript?". I believe we all have a certain understanding. I hope the content shared by the editor will be helpful to you. If you want to know more about the relevant knowledge, please follow the industry information channel.
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