ClojureScript: require "goog.dom query" as q

Question

I'm a bit confused with the import and require semantics..

I'm trying to use the query function inside the dom section of Google's clojure library.

(import '(goog.dom query))
(def q query)

Unfortunately it's not working with require :as :

(require '(goog.dom [query :as q]))

By this chance, I found out that the query function is deprecated. I don't quite get why. I'm just looking for a simple un-fancy abstraction (rather convenient simplification) to make dom manipulations/selections. I know there are tons, I just need a shortcut for not writing helpers like by-id select for every small project.

Answer 1

You are on the right path. You should use require in this case. Import is for a class that you want to construct.

(ns foo
  (:require [goog.dom :as dom])
  (:import [goog History]))

(dom/getElement "app")
(History.)

If you are using a figwheel repl, you can do this instead

(require 'goog.dom)
(goog.dom/getElement "app")

or

(require '[goog.dom :refer [getElement]])
(getElement "app")

or similar.

query is no longer avaliable, but there are plenty of useful functions like getElement getElementByClass getElementsByTagNameAndClass etc

For repl interaction you might be better using querySelector https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelector instead:

(js/document.querySelector ".myclass")