tonsky

(ns uploader
  (:require
    [clojure.string :as str]
    [goog.dom :as gdom]
    [goog.userAgent :as ua]
    [rum.core :as rum]))


(defonce supports-dragndrop?
  (let [el (js/document.createElement "div")]

tonsky

{ :+
  { :editor
    { "pmeta-/"           [:toggle-comment-selection]
      "ctrl-shift-up"     [:editor.sublime.selectLinesUpward]
      "ctrl-shift-down"   [:editor.sublime.selectLinesDownward]
      "pmeta-d"           [:editor.sublime.selectNextOccurrence]
      "ctrl-m"            [:editor.sublime.goToBracket]
      "ctrl-shift-m"      [:editor.sublime.selectBetweenBrackets]
      "shift-pmeta-space" [:editor.sublime.selectScope]
      "ctrl-pmeta-up"     [:editor.sublime.swapLineUp]

tonsky

[~/Dropbox/ws/rum] lein perf

--- Testing page1.html (1 kB) ---
Evaluation count : 4656 in 6 samples of 776 calls.
             Execution time mean : 127.518354 µs
    Execution time std-deviation : 3.729988 µs
   Execution time lower quantile : 124.490218 µs ( 2.5%)
   Execution time upper quantile : 132.649851 µs (97.5%)
                   Overhead used : 2.051537 ns

tonsky

(defn component [ref render-fn & {:keys [on-mount on-unmount]}]
  (let [comp (React/createClass (clj->js
              { :render               (fn [] (crate/html (render-fn @ref)))
                :componentDidMount    (or on-mount identity)
                :componentWillUnmount (or on-unmount identity) }))]
    (add-watch ref :react 
      (fn [_ _ old new]
        (when (not= old new) (.forceUpdate comp))))
    comp))

tonsky

(require '[clojure.string :as str])

(defn parse-line [line]
  (let [line (str/replace line #"[\\]\s*(\n\s*|$)" "")]
    (when-not (str/blank? line)
      (let [[k v] (str/split line #"=" 2)]
        [(str/trim k) (when-not (str/blank? v) (str/trim v))]))))

(defn parse [text]
  (let [lines (str/split text #"(?<![\s\\])\s*\n")]

tonsky

(def ^:dynamic chunk-size 17)

(defn next-chunk [rdr]
  (let [buf (char-array chunk-size)
        s   (.read rdr buf)]
    (when (pos? s)
      (java.nio.CharBuffer/wrap buf 0 s))))

(defn chunk-seq [rdr]
  (when-let [chunk (next-chunk rdr)]

tonsky

(ns ini
  (require [clojure.string :as str]
           [clojure.tools.logging :as log])
  (use clojure.test))

(defn read [content]
  (-> content
    (str/replace #"\\\s*($|\n\s*)" "")
    (str/split-lines)))

tonsky

(require '[datascript :as d])

(defn count-vals [db e a]
  (count (d/datoms db :eavt e a)))
  
(let [db (-> (d/empty-db {:link/tags {:db/cardinality :db.cardinality/many}})
             (d/db-with [[:db/add 1 :link/tags "a"]
                         [:db/add 1 :link/tags "b"]
                         [:db/add 1 :link/tags "c"]
                         [:db/add 2 :link/tags "x"]

tonsky

CLJ/CLJS perf comparison on DataScript 0.11.4

CLJ

test: q, method: d/q1, size: 100
{:unit μs, :min 61.923, :median 76.887, :max 161.738}

test: q, method: d/q2, size: 100
{:unit μs, :min 200.32, :median 213.523, :max 251.318}

tonsky

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/immutable/3.7.3/immutable.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mori/0.3.2/mori.js"></script>

<script type="text/javascript">
var hex_chars = "0123456789abcdef";

function rand_int(max) {
  return Math.floor(Math.random() * max);
}