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| 1 | +'use strict' |
| 2 | + |
| 3 | +var bindObject = require('simulacra') |
| 4 | +var flow = bindObject.flow |
| 5 | +var setDefault = bindObject.setDefault |
| 6 | +var bindEvents = bindObject.bindEvents |
| 7 | + |
| 8 | +var state = { rows: [] } |
| 9 | + |
| 10 | +var binding = [ '#main', { |
| 11 | + rows: [ 'tr', { |
| 12 | + id: 'td:nth-of-type(1)', |
| 13 | + label: [ 'td:nth-of-type(2) a', flow( |
| 14 | + setDefault, |
| 15 | + bindEvents({ |
| 16 | + click: function (event, path) { |
| 17 | + bench('select', function () { |
| 18 | + var i = 0, j = path.root.rows.length |
| 19 | + |
| 20 | + for (; i < j; i++) |
| 21 | + if (path.root.rows[i].isSelected) |
| 22 | + path.root.rows[i].isSelected = false |
| 23 | + |
| 24 | + path.target.isSelected = true |
| 25 | + }) |
| 26 | + } |
| 27 | + }) |
| 28 | + ) ], |
| 29 | + isSelected: function (node, value) { |
| 30 | + node.className = value ? 'danger' : '' |
| 31 | + } |
| 32 | + }, bindEvents({ |
| 33 | + click: function (event, path) { |
| 34 | + if (event.target.tagName === 'SPAN') { |
| 35 | + bench('delete', function () { |
| 36 | + var id = event.target.parentNode.parentNode |
| 37 | + .parentNode.childNodes[1].textContent |
| 38 | + |
| 39 | + path.target.rows.splice(path.target.rows.findIndex(function (obj) { |
| 40 | + return obj.id === id |
| 41 | + }), 1) |
| 42 | + }) |
| 43 | + } |
| 44 | + } |
| 45 | + }) ] |
| 46 | +} ] |
| 47 | + |
| 48 | +var methods = { |
| 49 | + run: create('run', 1000), |
| 50 | + add: function () { |
| 51 | + bench('add', function () { |
| 52 | + state.rows.push.apply(state.rows, buildData(1000)) |
| 53 | + }) |
| 54 | + }, |
| 55 | + runlots: create('runLots', 10000), |
| 56 | + update: function () { |
| 57 | + bench('update', function () { |
| 58 | + var i |
| 59 | + |
| 60 | + for (i = 0; i < state.rows.length; i++) |
| 61 | + if (i % 10 === 0) state.rows[i].label += ' !!!' |
| 62 | + }) |
| 63 | + }, |
| 64 | + swaprows: function () { |
| 65 | + bench('swapRows', function () { |
| 66 | + var a, b |
| 67 | + |
| 68 | + if (state.rows.length > 10) { |
| 69 | + a = Object.assign({}, state.rows[4]) |
| 70 | + b = Object.assign({}, state.rows[9]) |
| 71 | + Object.assign(state.rows[4], b) |
| 72 | + Object.assign(state.rows[9], a) |
| 73 | + } |
| 74 | + }) |
| 75 | + }, |
| 76 | + clear: function () { |
| 77 | + bench('clear', function () { |
| 78 | + state.rows = [] |
| 79 | + }) |
| 80 | + } |
| 81 | +} |
| 82 | + |
| 83 | +document.body.appendChild(bindObject(state, binding)) |
| 84 | +document.body.addEventListener('click', function (event) { |
| 85 | + var id = event.target.id |
| 86 | + if (id) methods[id]() |
| 87 | +}) |
| 88 | + |
| 89 | +var adjectives = [ |
| 90 | + "pretty", "large", "big", "small", "tall", "short", "long", "handsome", |
| 91 | + "plain", "quaint", "clean", "elegant", "easy", "angry", "crazy", "helpful", |
| 92 | + "mushy", "odd", "unsightly", "adorable", "important", "inexpensive", "cheap", |
| 93 | + "expensive", "fancy" |
| 94 | +] |
| 95 | + |
| 96 | +var colours = [ |
| 97 | + "red", "yellow", "blue", "green", "pink", "brown", "purple", "brown", |
| 98 | + "white", "black", "orange" |
| 99 | +] |
| 100 | + |
| 101 | +var nouns = [ |
| 102 | + "table", "chair", "house", "bbq", "desk", "car", "pony", "cookie", |
| 103 | + "sandwich", "burger", "pizza", "mouse", "keyboard" |
| 104 | +] |
| 105 | + |
| 106 | +var id = 0 |
| 107 | + |
| 108 | +function create (label, number) { |
| 109 | + return function () { |
| 110 | + bench(label, function () { |
| 111 | + var i = 0, data = buildData(number) |
| 112 | + |
| 113 | + for (; i < number; i++) { |
| 114 | + if (i < state.rows.length - 1) { |
| 115 | + state.rows[i].id = data[i].id |
| 116 | + state.rows[i].label = data[i].label |
| 117 | + } |
| 118 | + else state.rows.push(data[i]) |
| 119 | + } |
| 120 | + |
| 121 | + state.rows.splice(number, state.rows.length - number) |
| 122 | + }) |
| 123 | + } |
| 124 | +} |
| 125 | + |
| 126 | +function random (max) { |
| 127 | + return Math.round(Math.random() * 1000) % max |
| 128 | +} |
| 129 | + |
| 130 | +function buildData (count) { |
| 131 | + var data = [], i |
| 132 | + |
| 133 | + for (i = 0; i < count; i++) { |
| 134 | + id++ |
| 135 | + data.push({ |
| 136 | + id: '' + id, |
| 137 | + label: |
| 138 | + adjectives[random(adjectives.length)] + " " + |
| 139 | + colours[random(colours.length)] + " " + |
| 140 | + nouns[random(nouns.length)] |
| 141 | + }) |
| 142 | + } |
| 143 | + |
| 144 | + return data |
| 145 | +} |
| 146 | + |
| 147 | +function bench (label, fn) { |
| 148 | + var t0 = performance.now(), t1 |
| 149 | + fn() |
| 150 | + requestAnimationFrame(function () { |
| 151 | + t1 = performance.now() |
| 152 | + console.log(label + ' took ' + (t1 - t0)) |
| 153 | + }) |
| 154 | +} |
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