Mapping string with key-value pair to object

Question

Given the following string with key-value pairs, how would you write a generic function to map it to an object?

At the moment, I am just splitting by : and ; to get the relevant data, but it doesn't seem like a clean approach.

This my code at the moment:

var pd = `id:S76519;sku:S76519;name:StarGazer 3000;model:ICC74`;
var tempPd = pd.split(';');
for (i = 1; i < tempPd.length; i++) {
    var b = tempPd[i].split(':');
    console.log(b[1]);
}

Well what you're doing is pretty much the only thing you can do. If you've got a string and you want to extract information according to a syntax you expect to find, then you parse the string and build a data structure. — Pointy
– Pointy, Commented Mar 5, 2017 at 18:24
if you know that there are no ; and : in the keys and values then why not? — ave4496
– ave4496, Commented Mar 5, 2017 at 18:25
Can you show the code that you're using currently? It's hard to know if there's a more clean approach without seeing what you've already got. — StriplingWarrior
– StriplingWarrior, Commented Mar 5, 2017 at 18:26
@StriplingWarrior this my approach at the moment, as the first two values are identical, i start my increment at 1. — methuselah
– methuselah, Commented Mar 5, 2017 at 18:34

Legends · Accepted Answer · 2017-03-05 18:45:32Z

1

What about using reduce:

function objectify(str) {

	return str.split(";").reduce(function (obj, item) {
		var a = item.split(":");
		obj[a[0]] = a[1];
		return obj;
	}, {});

}

var strObj = "id:S76519;sku:S76519;name:StarGazer 3000;model:ICC74";
console.log(objectify(strObj));

or:

function objectify(str){

return str.split(";").reduce((obj,item)=>{  
   var a = item.split(":");
   obj[a[0]]=a[1];
   return obj;  
},{});

}
 
var strObj = "id:S76519;sku:S76519;name:StarGazer 3000;model:ICC74";
console.log(objectify(strObj));

edited Mar 5, 2017 at 18:45

answered Mar 5, 2017 at 18:38

Legends

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1 Comment

methuselah Over a year ago

Works great. Thank you!

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