Looping Through Unknown Number Of Array Arguments

I am trying to figure out how to loop through several array arguments passed. For example: [1,2,3,4,5],[3,4,5],[5,6,7] If I pass it to a function, how would I have a function loop

Solution 1:

You can use arguments for this:

for(var arg = 0; arg < arguments.length; ++ arg)
{
    var arr = arguments[arg];

    for(var i = 0; i < arr.length; ++ i)
    {
         var element = arr[i];

         /* ... */
    } 
}

Solution 2:

Use forEach, as below:

'use strict';

    functiondoSomething(p1, p2) {
        var args = Array.prototype.slice.call(arguments);
        args.forEach(function(element) {
            console.log(element);
        }, this);
    }

    doSomething(1);
    doSomething(1, 2);

Solution 3:

Use the built in arguments keyword which will contain the length of how many arrays you have. Use that as a basis to loop through each array.

Solution 4:

functionloopThroughArguments(){
    // It is always good to declare things at the top of a function, // to quicken the lookup!var i = 0,
        len = arguments.length;

    // Notice that the for statement is missing the initialization.// The initialization is already defined, // so no need to keep defining for each iteration.for( ; i < len; i += 1 ){

        // now you can perform operations on each argument,// including checking for the arguments type,// and even loop through arguments[i] if it's an array!// In this particular case, each argument is logged in the console.console.log( arguments[i] );
    }

};