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React Lesson 0 阅读全文
posted @ 2015-03-23 03:01
Zhentiw
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This lesson shows how to refactor your old loops into using a simpler and more powerful lodash-style. We will start by looking at how many people trad... 阅读全文
posted @ 2015-03-21 22:31
Zhentiw
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In addition to flat Arrays, programmers must often deal with nested Arrays. For example let's say we have an Array of stock exchanges, each of which i 阅读全文
posted @ 2015-03-21 22:23
Zhentiw
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Both map and filter do not modify the array. Instead they return a new array of the results. Because both map and filter return Arrays, we can chain t 阅读全文
posted @ 2015-03-21 22:16
Zhentiw
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One very common operation in programming is to iterate through an Array's contents, apply a test function to each item, and create a new array contain 阅读全文
posted @ 2015-03-21 22:12
Zhentiw
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One very common operation in programming is to iterate through an Array's contents, apply a function to each item, and create a new array containing t 阅读全文
posted @ 2015-03-21 22:06
Zhentiw
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Most JavaScript developers are familiar with the for loop. One of the most common uses of the for loop is to iterate through the items in an array. In 阅读全文
posted @ 2015-03-21 22:01
Zhentiw
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Leaflet Demo $.getJSON('//jsbin.com/qogati/1.js', renderMap);function renderMap (geoData) { var map = L.map('map'); var osm = '//{s}.tiles.mapb... 阅读全文
posted @ 2015-03-21 20:56
Zhentiw
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Leaflet makes creating maps in the browserdead simple. With some HTML and 3 lines of JavaScript, we can quickly have a map displaying// create a map i... 阅读全文
posted @ 2015-03-20 23:16
Zhentiw
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window.onload = function() { var canvas = document.getElementById("canvas"), context = canvas.getContext("2d"); var gradient =context.cre... 阅读全文
posted @ 2015-03-20 04:50
Zhentiw
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