Question

I have the following code:

function doSomething(str){
    return str+="a";
}

function anotherFunction(str){
    return str+="b";
}

_.mixin({
    doSomething:doSomething,
    anotherFunction:anotherFunction
});

I want to use multiple functions together in one line, but I can’t manage to work:

var output=_("startingtext").doSomething().anotherFunction();

I managed to make it work using _.chain, but I am not sure if chain should be used because in their example they are using with objects and stuff, so I really doubt this is the way to go for string manipulation.

Sorry, I am new to underscore :(, any help is appreciated.

Answer 1

_.chain() is exactly the way to go.

In Javascript, everything is an object. Including a string. You were doing it right the first time. _.chain() wraps your string in an object that can be passed forward, chain-style, and unpacked at the end with a call to value().