Split a pipe delimited key-value pair separated by '=' symbol

Question

We are receiving an input parameter value as a pipe-delimited key-value pair, separated with = symbols. For example:

"|User=0101|Name=ImNewUser|IsAdmin=0|RefId=23ae2123cd223bf235|"

So the format is: |KEY=VALUE|KEY_2=VALUE_2|....|KEY_n=VALUE_n|

I need to split it into a JSON object. So, my object should be :

{
 'User':'0101',
 'Name':'ImNewUser',
 'IsAdmin':'0',
 'RefId'='23ae2123cd223bf235'
}

What will be best way to go, since there are multiple options:

• I can use split with | and again on each element split with =.
• I can depend on regular expression and do string replace.
• Split it with = remove trailing | symbol and associate two different arrays with indexes.

Can anyone tell me the best/most efficient way of doing this in JavaScript (programming in Node.js)?

Answer 1

The first one sounds good:

var str = "|User=0101|Name=ImNewUser|IsAdmin=0|RefId=23ae2123cd223bf235|";


var result = {};
str.split('|').forEach(function(x){
    var arr = x.split('=');
    arr[1] && (result[arr[0]] = arr[1]);
});

Answer 2

If you do decide to use regex, make sure it's block rockin' regex like this:

var result = {};

s.replace(/([^=|]+)=([^|]*)/g, function(noStep3, a, b) { result[a] = b; });