JavaScript variable number of arguments to function

Question

Is there a way to allow \"unlimited\" vars for a function in JavaScript?

Example:

load(var1, var2, var3, var4, var5, etc...)
load(var1)

Answer 1

As mentioned already, you can use the arguments object to retrieve a variable number of function parameters.

If you want to call another function with the same arguments, use apply. You can even add or remove arguments by converting arguments to an array. For example, this function inserts some text before logging to console:

log() {
    let args = Array.prototype.slice.call(arguments);
    args = ['MyObjectName', this.id_].concat(args);
    console.log.apply(console, args);
}