lwhorton

Keybase proof

I hereby claim:

• I am lwhorton on github.
• I am lwhorton (https://keybase.io/lwhorton) on keybase.
• I have a public key ASB18ki5khnROa1xhWw_MiTwxIXHahAD0UgHVOVZfyQq4Ao

To claim this, I am signing this object:

lwhorton

// optimizing this code:
function unusedFunction(note) {
    alert(note['text']);
}
function displayNoteTitle(note) {
    alert(note['title']);
}
var flowerNote = {};
flowerNote['title'] = "Flowers";
displayNoteTitle(flowerNote);

lwhorton

(let [arr []]
  (type arr) ;; clojure.lang.PersistentVector
  (instance? clojure.lang.PersistentVector arr) ;; true
  )

(= 1 "1") ;; false
(= 1 [1]) ;; false
(= 0 false) ;; false
(= "" false) ;; false
(= nil false) ;; false

lwhorton

(let [old {:a 1 :b 2}
      new-o (assoc old :c 3)]
  (prn old) ;; {:a 1 :b 2}
  )

(let [arr [1 2 3] 
      new-a (conj arr 4)]
  (prn arr) ;; [1 2 3] 
  )

lwhorton

;; refs are never mutated
;; equality is value-based, not identity based
;; but you can still compare identity
(let [a [1 2 3]
      b (conj a 4)]
  (prn a) ;; [1 2 3]
  (prn b) ;; [1 2 3 4]
  (= a b) ;; false
  (= a (drop-last b)) ;; true
  (identical? a (drop-last b)) ;; false

lwhorton

;; when not every value in transient-states is saved, return a string"
(defn confirm-leave? [db]
  (when-not (->> (:transient-states db)
                 (vals)
                 (every? :saved?))
    "There is unsaved data, do you want to continue?"))

lwhorton

shouldComponentUpdate: function () {
  if (this.state.someState) {
    // do stuff
  } else {
    // do different stuff
  }
}
, componentDidMount: function() {
  if (this.props.someProp && this.state.someOtherState) {
    if (!this.props.anotherProp) {

lwhorton

// These are the most basic properties required by a line chart.
    function Chart() {}
    Chart.prototype.data = null;
    Chart.prototype.svgWidth = 600;
    Chart.prototype.svgHeight = 500;
    Chart.prototype.margin = {top: 20.0, right: 20.0, bottom: 20.0, left: 20.0};
    Chart.prototype.width = 500;
    Chart.prototype.height = 400;
    Chart.prototype.xValue = function (d) { return d[0]; };
    Chart.prototype.yValue = function (d) { return d[1]; };