I've an object as
const posts = {
"BAhvZrRwcfu":{
"text":"Totally need to try this.",
"user": "heavymetaladam",
vote: 2
},
"BAcyDyQwcXX":{
"text":"Wes. WE should have lunch.",
"user": "jdaveknox",
vote : 3
}
};
is there a way I can sort based on the vote.It seems easier if i make it an array of object
I recommend converting to an array of objects. Then you can control your sorting criteria and change them more easily in the future should those criteria change.
You can do something like this:
var postsList = Object.values(posts)
See this Stackoverflow answers for more details on how/why that works:
See previous answer on stack overflow for details on sorting an array of objects, if you don't already know how to do this:
For example, to sort by number of votes:
posts.sort(function(a, b) {
return parseInt(a.vote) - parseFloat(b.vote);
});
You can create an array of objects from the original object using Object.entries()
const posts = {
"BAhvZrRwcfu": {
"text": "Totally need to try this.",
"user": "heavymetaladam",
"vote": 3
},
"BAcyDyQwcXX": {
"text": "Wes. WE should have lunch.",
"user": "jdaveknox",
"vote": 2
}
};
const sortedPosts = Object.entries(posts)
.sort(([, {vote: a}], [, {vote: b}]) => a < b ? -1 : 1)
.map(([key, prop]) => ({[key]: prop}));
console.log(sortedPosts);Alternatively you can set the objects within a Map
const posts = {
"BAhvZrRwcfu": {
"text": "Totally need to try this.",
"user": "heavymetaladam",
"vote": 3
},
"BAcyDyQwcXX": {
"text": "Wes. WE should have lunch.",
"user": "jdaveknox",
"vote": 2
}
};
const sortedPosts = new Map;
Object.entries(posts)
.sort(([, {vote: a}], [, {vote: b}]) => a < b ? -1 : 1)
.forEach(([key, prop]) => sortedPosts.set(key, prop));
console.log(sortedPosts);
posts = {} for (let num in aa) { posts[aa[num].id] = aa[num] }Objects are intrinsically key-based and not ordered. To access it in a certain order, I find it helpful to create an order list:
var order = [];
$.each(posts, function(key, value) {
order.push([key, value.vote])
}); //use for loop if you prefer
order.sort(function(a,b){
return a[1] - b[1]; //ascending order
})
Then you can access posts based on the order of the array order, e.g.
order.forEach(function(e){
posts[e[0]];
})
var keys = Object.keys(state.posts); keys.sort((a, b) => { if (a.voteScore < b.voteScore) { return -1; } if (a.voteScore > b.voteScore) { return 1; } // a.voteScore must be equal to b.voteScore return 0; }).reduce((a, v) => { return state.posts[v] }, {})It seems easier if i make it an array of object- yes, you are right on this point, because Objects are not "sortable", arrays are