如何将新元素添加到对象数组？

Question

I want to add a new element to my array of objects. Each array element list[x] for an arbitrary integer x is an object of the form:

{
    name: "insert-name",
    value: "insert-value"
}

I was told that for adding an element to an array, I must use the push() function. So that is what I did:

exports.handle = function(input) {
for(var i=0; i<cc.list.length; i++) {
    if(input == cc.list[i].name) {
        return cc.list[i].value;
    }
}

if(input.startsWith("create-cc")) {
    var namevalue = input.slice(10, input.length);
    var spaceloc = namevalue.indexOf(" ");
    var nname = namevalue.slice(0, spaceloc);
    var nvalue = namevalue.slice(spaceloc+1, namevalue.length);

    cc.list.push({
        name: nname,
        value: nvalue
    });

    return "Command successfully created! Typing `Z!" + name +"` will output `" + value +"` now!" ;
}

return "Error.";

};

cc.list is the name of the array in this module .js file. I use the inputs from a user to be filled as the name and value for the new array element that I want to add to the list. However I got an error on the console, which told me:

ReferenceError: name is not defined

This totally makes sense, since I did not declare such a parameter. But doesn't that parameter already exist as a part of the "template" object that forms the array element? Why does this method not work? And how do I make a new array object element to be appended to this array?

Answer 1

The issue is with this line:

return "Command successfully created! Typing `Z!" + name +"` will output `" + value +"` now!" ;

It is making use of a variable named name , however no such variable exists, hence the error ReferenceError: name is not defined

You have made the same error with value , there is no variable defined with that name.

You do however have variables named nname and nvalue , so perhaps this is what you were intending to write:

return "Command successfully created! Typing `Z!" + nname +"` will output `" + nvalue +"` now!" ;