CODEWITHSUNDEEP
javascriptobject
user667122
user667122

Reputation: 49

How would i go about getting a specific object based on the value of a string with javascript?

I have separate javascript files to load custom objects; these objects are designed to extend some default parameters when the main function is read

they each look like

 var str1= { path:'url1:, var1:5};
 var str2= { path:'url2:, var1:3};
 etc...

I have an array of strings(that is generated from loading an rss page) and i want to return the object based on if its name matches the object name. hardcoding it would kind of defeat the purpose

Upvotes: 0

Views: 214

Answers (3)

Dennis
Dennis

Reputation: 32598

var map = {  "string1": { path: "url1", var1:5},
             "string2": { path: "url2", var1:3} };
...
var url = map[yourstring].path;

Upvotes: 0

Matt
Matt

Reputation: 75317

You can use the square bracket notation to refer to object properties whose key name is held in a variable:

var key = 'path';
var str1 = { path: 'url', var1: 1};
var value = str1[key]; // value == 'url';

You can also do:

var str1 = 'a';
var str2 = 'b';

var key = 'str1';
var value = window[key]; // value == 'a';

Upvotes: 0

Ken Wayne VanderLinde
Ken Wayne VanderLinde

Reputation: 19339

Take a look at this question. It shows how to reference objects by using strings. The only difference I can see is that rather than starting with the window object, you would start at whatever object defines your current scope (e.g. this).

Upvotes: 1

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