jbr/sibilant

Javascript with a lisp

motivate

@motivate:matrix.org

[m]

I am stuck at this point

Jacob Rothstein

@jbr

it might help to look at the output javascript and see what you'd want to do with that

motivate

@motivate:matrix.org

[m]

It is Like Input: {'hello 'hi 'hi 'hello 'hi} and then I want output as: {hi:3, hello:2}

Jacob Rothstein

@jbr

have you looked at the output javascript

motivate

@motivate:matrix.org

[m]

not yet

Jacob Rothstein

@jbr

that is the next step

it will help you understand what sibilant is actually doing

motivate

@motivate:matrix.org

[m]

```

It would be like this in javascript

Jacob Rothstein

@jbr

that doesn't return the results in any order

they're displayed in the order that they occur, not alphabetically

motivate

@motivate:matrix.org

[m]

It is just for count as keys and values and I want the order based on count i.e. descending- 3,2,1

Jacob Rothstein

@jbr

then you want an array output, not an object

the javascript above returns unordered results

motivate

@motivate:matrix.org

[m]

Yes I want an array output just the sorted counts

Jacob Rothstein

@jbr

take a look at Object.keys or sibilant's keys macro. you can map the keys to [[k, v], ...] and then sort that

motivate

@motivate:matrix.org

[m]

This is more general code in java script

Jacob Rothstein

@jbr

that's java not javascript

sibilant compiles to javascript

motivate

@motivate:matrix.org

[m]

Sorry I pasted the wrong code

Jacob Rothstein

@jbr

You should be able to translate that to sibilant. Let me know if you run into specific stumbling blocks

motivate

@motivate:matrix.org

[m]

okay sure

motivate

@motivate:matrix.org

[m]

Hi I tried this

but it is saying sort is not a function

Jacob Rothstein

@jbr

Sort is for arrays. You have an object. You need to use Object.keys and Array.prototype.map to turn the object into an array

motivate

@motivate:matrix.org

[m]

Can you help me with this how to convert it to array?

Jacob Rothstein

@jbr

Oh you can use Object.entries now, I forgot about that

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries

So use sort on the entries of that object

Ha Nguyen

@iamha1

Hi team! I was given a task on sibilant, and I have such difficulty learning it. Would any of you be able to help me?

Jacob Rothstein

@jbr

@iamha1 there’s a good chance it’s the same task other folks have been looking for help with, so scrolling up will likely yield answers. If you still have specific questions, ask away

Ha Nguyen

@iamha1

@jbr Thank you so much! Let me do that!

Ha Nguyen

@iamha1

Guys, would you be able to help me how to sort a key-value pair. For example:

;1 declare tasks

(var tasks { 2 “eat breakfast”, 3 “go to work”, 1 "get up” })

;2 sort each task

tasks.sort [2 3 1] (# (a b) (- a b)))

Jacob Rothstein

@jbr

maybe this? https://gitter.im/jbr/sibilant?at=60b0425c78e1d6477d6c0eb1

how would you do it in javascript?

Ha Nguyen

@iamha1

@jbr var tasks = [
{id: 2 , name: “eat-breakfast”},
{id: 3, name: “go to work”},
{id: 1, name: “get up”}

];

tasks.sort(function (a-b){
return a.id - b.id;
});

This is how i would do in JS.

(I don't think I need a loop, right?! Because if do, I guess I need to create a new object to push the sorted values to). Thank you so much for being patient with me.

Jacob Rothstein

@jbr

 (var tasks [
    {id: 2, name: "eat-breakfast"},
    {id: 3, name: "go to work"},
    {id: 1, name: "get up"}])

(tasks.sort (#(a b) (- a.id b.id)))

that would be the identical code in sibilant — if you paste it into the "try sibilant into your browser" link at the top of docs.sibilant.org, the output is

var tasks = [ {
  id: 2,
  name: "eat-breakfast"
}, {
  id: 3,
  name: "go to work"
}, {
  id: 1,
  name: "get up"
} ];
tasks.sort((function(a, b) {
  /* eval.sibilant:6:12 */

  return (a.id - b.id);
}));

it's equivalent to do

(.sort tasks (#(a b) (- a.id b.id)))

Ha Nguyen

@iamha1

@jbr Thank you so much for helping me! I really appreciate you! :)

Franklin Shih

@fshih1

hello nice to meet everyone here

Jacob Rothstein

@jbr

👋

Franklin Shih

@fshih1

How could i convert a object to an array of tuples ?

or is there any documentation i could refer to?

i just saw your comment above, it says " You need to use Object.keys and Array.prototype.map to turn the object into an array"

I think i will try it out first

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