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Method One: The function constructs the definition method to returnvar strjson = "{name: ' JSON name '}"; The resulting JSONvar obj = new Function ("return" + Strjson) ();//the converted JSON objectalert (obj.name); JSON nameMethod Two: JS in the

Origin:When assembling Echart page, encounter such a problem, it is a need in the loop inner layer, at the same time, the loop layer, in the inner loop will be the outer layer to get the value of the deposit, resulting in a entangled state, the old

Picture too large to load slowly? Rather than a picture that's too slow to load?The first thing to do is to compress as much as possible to see how much users endure. JPG can be compressed in many ways, PNG recommends using TinypngTool (But the body

1.Repeatedband the use of print and sub-reports.Repeatedband Implementation method: Set band to repeat for each page. Note that the second print starts with a repeat print. The first print is not considered to be repeatedband. Report Column band

Through the last lesson, we have a simple understanding of Django, now to understand the next ~1. Routing System1.1 Single-Route correspondenceURL (r ' ^index$ ', Views.index),1.2 Regular-based routingURL (r ' ^index/(\d*) ', views.index), url (r ' ^

Preliminary understanding: We have to look at a few examples before talking about prototype and constructor. 1234 functionname(obj){    alert(obj)//"uw3c"}name("uw3c") This is an ordinary self-invocation of the

1, when the element or its wrapping layer is set absolute positioning or is floating, then margin:0 auto, the effect of automatic centering will not be realized.2, the box model of the three-bit stereoscopic structure from the first layer to the

Effect: A new array that generates value for each value in the map list by converting functions (Iteratee iterators). Iteratee passes three parameters: value, and then the iteration index._.map ([1, 2, 3], function (num) {return num * 3;}); = = [3, 6

Cause:Today suddenly opened a personal blog, and found that open very slow, and then appeared the feedback: Server service is not available! Waht? Refresh a few times do not, quickly log on to the server background to view the situation.650)

First step: Add a user picture to the form in the database models.py in the fieldThe second step: Add the Avatar upload in the form of editing the material,Avatar = Filefield (' Avatar ')The third step: in the editing data routing interface, add

1. PrefaceRecently introduced keyless in the project, you need to test the performance impact on the web. Common Web testing tools include AB, Siege, Http_load, and so on. I'm using Apache's AB test tool. Before you test Web performance, you first

Download the installation package: wget http://cn2.php.net/distributions/php-5.6.29.tar.gzPHP compilation Installation steps:One, configure the compilation parameters./configure./configure \>--prefix=/usr/local/php

code blockHTML page:box-shadowCSS style:This article is from the "Yan" blog, please be sure to keep this source http://suyanzhu.blog.51cto.com/8050189/1883411CSS3 Box-shadow

HTML Sample Code first title Household appliances category Home appliance Price Female: second title 1 2 First Third Fourth & lt;/div> 1. Contains: Contains selectors that match the element

Tag: false The framework option ring requires overflow ABI led linkFirst recall the 12 form elements in an HTML page11. Text Class2text Box "text"Id=""Name=""Value=""/>3Password box "Password"Id=""Name=""Value=""/>4Text field ""cols="Number of

Prototype design Pattern: use prototype instances to specify the kind of objects that are created, and create new objects by copying those prototypes.The prototype design pattern is simply, as the name implies, a design pattern that preserves the

Year Month DayJS Instance 8th-time selection

Basic structure of 1.html Web page: html> html> head lang="en"> Meta charset="UTF-8"> Metahttp-equiv="content-type"content="text/html; charset=gb2312 "/>page character encoding- Metaname="keywords"content="Handan"/> search for keywords

1, first constructs the formatted data structure model that the tree acceptsDefine Easyui tree related data to facilitate the controller to generate JSON data for delivery[datacontract][Serializable]public class Easytreedata{Id[DataMember]public

Module Glob:Glob main use for filtering filesAPI Example:var New Glob. Glob ("@ (a|a1|b). js", {nonull:true, matchbase:true, sync:true}); console.log ( globinstance.found);varGlob = require (' glob ')); Glob ("**/*.js", "",function(er, files)