When creating a JavaScript function with multiple arguments, I am always confronted with this choice: pass a list of arguments vs. pass an options object. For example I am writing a function to map a nodeList to an array: function map(nodeList, callback, thisObject, fromIndex, toIndex){ … } I could instead use this: function map(options){ … … Read more
This question already has answers here: What’s the difference between an argument and a parameter? (36 answers) Closed 9 years ago. I often find myself confused with how the terms ‘arguments’ and ‘parameters’ are used. They seem to be used interchangeably in the programming world. What’s the correct convention for their use? 12 Answers 12
How do I find the number of arguments passed to a Bash script? This is what I have currently: #!/bin/bash i=0 for var in “$@” do i=i+1 done Are there other (better) ways of doing this? 4 Answers 4
I usually input command line arguments in Eclipse via run configuration. But I don’t know how do achieve the same task in IntelliJ IDEA. 18 Answers 18
I am confused about default values for PHP functions. Say I have a function like this: function foo($blah, $x = “some value”, $y = “some other value”) { // code here! } What if I want to use the default argument for $x and set a different argument for $y? I have been experimenting with … Read more
Coming from C++ background 😉 How can I overload PHP functions? One function definition if there are any arguments, and another if there are no arguments? Is it possible in PHP? Or should I use if else to check if there are any parameters passed from $_GET and POST?? and relate them? 9 Answers 9
This question already has answers here: Closed 10 years ago. Possible Duplicate: How do I make a default value for a parameter to a javascript function in PHP: function func($a = 10, $b = 20){ // if func() is called with no arguments $a will be 10 and $ b will be 20 } How … Read more
If I run my C++ application with the following main() method everything is OK: int main(int argc, char *argv[]) { cout << “There are ” << argc << ” arguments:” << endl; // Loop through each argument and print its number and value for (int i=0; i<argc; i++) cout << i << ” ” << … Read more
Suppose I have the following Button made with Tkinter in Python: import Tkinter as Tk win = Tk.Toplevel() frame = Tk.Frame(master=win).grid(row=1, column=1) button = Tk.Button(master=frame, text=”press”, command=action) The method action is called when I press the button, but what if I wanted to pass some arguments to the method action? I have tried with the … Read more
In PHP there is func_num_args and func_get_args, is there something similar for JavaScript? 11 Answers 11