So I have an object (EDIT: originally called it a "hash") like
newHash =
{item1: "spam",
item2: "everything"
}
and I want to return just "spam" and "everything".
It seems it doesn't work to write a for loop like this:
for (var x in newHash) {return newHash[x].value}
Thanks!
EDIT : replaced the word "hash" in question with "Object" as per popular convention.
Try something like this:
function getObjectValues(obj) {
var i, ret = [];
for( i in obj) if( obj.hasOwnProperty(i)) ret.push(obj[i]);
return ret;
}
Regarding the title of your question, I guess you want to do this :
var newHash = {
item1: "spam",
item2: "everything"
};
newHash.item1; // "spam"
newHash['item1']; // "spam"
newHash.item2; // "everything"
newHash['item2']; // "everything"
Then, if you want to get all the values, you'll need to store them into a list :
var list = [];
for (var key in newHash) {
list.push(newHash[key]);
}
list; // ["spam", "everything"]
list.join(); // "spam,everything"
Since your keys are based on the same pattern, you could also do it like so :
var list = [];
for (var i = 1; i <= 2; i++) {
list.push(newHash['item' + i]);
}
If you don't mind using Underscore (which is a great library!), you can do this:
newHash = {
item1: "spam",
item2: "everything"
}
_.values(newHash)
returns:
["spam", "everything"]
You can do the following:
return Object.keys(newHash).map(function (key) { return newHash[key]; });
,which returns an array with the values in the object.
It works like this: you get an array of keys, then use the map function to get a corresponding array with the value for each key.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
Your object declaration has a " character to much.
newHash = {
item1: "spam",
item2: "everything"
}
for( var x in newHash )
console.log(newHash[x]);
" character is most likely just a typo in the question. This doesn't answer the part about "returning" the values.
(function(o){var res=[],i;for(i in o){res.push(o[i]);}return res;})(newHash);
You could always add a values function to the object prototype along the same lines as Object.keys().
if (!('values' in Object.prototype)) {
Object.prototype.values = function (obj) {
return Object.keys(obj).map(function (p) { return obj[p]; });
}
}
var obj = {
'1': 'one',
'2': 'two',
'3': 'three'
}
console.log(obj.values()); // ["one", "two", "three"]
