Oct 9, 2012 · Can I declare default parameter like function myFunc( a, b=0) { // b is my optional parameter } in JavaScript?

Feb 9, 2010 · 74 There is no syntax in Javascript that specifies that a parameter is optional (or required). All parameters are optional. If they aren't specified they're so you need to check for that. For …

Sep 29, 2008 · Maybe a more affirmative example will make better sense: In JavaScript a missed parameter is like a declared variable that is not initialized (just var a1;). And the equality operator …

I have a static javascript function that can take 1, 2 or 3 parameters: function getData(id, parameters, callback) //parameters (associative array) and callback (function) are optional I know I can

I am writing a Javascript function with an optional argument, and I want to assign the optional argument a default value. How can I assign it a default value? I thought it would be this, but it do...

Dec 21, 2015 · I'm new to JavaScript coming from Python background. In Python parameters can be passed as key and value as such: def printinfo( name, age = 35 ): print "Name: ", name print "Age ", …

Dec 2, 2011 · Skipping optional function parameters in JavaScript Asked 14 years, 1 month ago Modified 1 year, 1 month ago Viewed 87k times

Contrary to what is commonly believed, named parameters can be implemented in standard, old-school JavaScript (for boolean parameters only) by means of a simple, neat coding convention, as shown …

Apr 12, 2013 · What is a good way of assigning a default value to an optional parameter? Background I'm playing around with optional parameters in JavaScript, and the idea of assigning a default value if …

If your function takes 1,2, or 3 required parameters for which no default value makes sense, make them positional parameters to the function, any optional parameters should follow as named attributes of a …