10 tips for moving from programmer to entrepreneur
Many people who participate in barcamp are suffering fromProgramMembers are transformed into entrepreneurs. Even though I have never been a crazy codoon (keep myself in the basement for a week and make 100,000 million linesCodeSo =. =), But I have also made such a transformation. During the years when I founded helpspot, I have also summed up some experiences and what will happen to people who will
checked the information. It is said that the $ (). Each method can be used below 1000. If this number continues to increase, the for loop statement should be used.
Minimize Dom operationsDom operations are relatively expensive on the page (for example, inserting or deleting a piece of text on the page). Minimizing this change is the best practice to maintain performance! For example:Copy codeThe Code is as follows:
We can see that the first example modifies the DOM 100 times, while the seco
Relatively rough and simple. For more information, see. Paste the following content:
This is the main content of the first ppt. I will not post more details about the specific items. If you are interested in these aspects, you can download them. Since the ppt is based on the editor example, here I also attached a simple demo using the execCommand command. The principle of editor can be seen in the demo. The code is attached here:
Copy codeThe Code is as follows:
You can test it locally for d
Custom avatar processing is lightweight and practical. There are a lot of powerful tips in it. Come and praise me ^ _ ^, Avatar tipsThe Method Code introduced in this article is all the key points. If you need other things, complete them by yourself.
Note that in the Code on the following page, every comment is basically a practical, powerful, and interesting technique !! Will anyone be excited when I see this?
/** Several styles used */
This backgr
IOS tips [go] and ios tipsWhat if no Cell is displayed in TableView?
Like this, I don't want to make the following empty display.
Very simple.
self.tableView.tableFooterView = [[UIView alloc] init];All the items you have tried are okay.
After this sentence is added, it becomes like this.
What should I do if the returned gesture of a custom leftBarbuttonItem left slide fails?
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]
Http://www.sqlservercentral.com/articles/Performance+Tuning/70647/Tips to optimize your SQL statementsby Brian Ellul, 2010/07/29 Introduction
There is a huge difference between writing an SQL statement which works and one which works well and performs well. sometimes developers are too focused on just writing their SQL to perform the required task, without taking into consideration its performance and most importantly its impact on the SQL server inst
1. When you are looking for information about a specific PHP function, go to http://php.net /. For example, http://php.net/join. This will direct you to the correct location in the online manual on a server near your geographic location.2. Try this: pear install apc. The pear command is a useful installation program. It can even be used to install PHP extensions written in C. In this case, it will install the APC opcode high-speed cache extension.3. Use opcode cache to improve performance. See #
Gmail has become the geeks choice, it is powerful, safe and stable, used to manage mail is very convenient. Here's a 10-point Gmail tip that might be useful to you:
# Google Code repository and GreasemonkeyThe former is a Gmail script library, the latter is the Firefox plug-in, the two can be used together to achieve special functions, such as the label into color, save search results and even Gmail and Google Reader combined use.
# macro Script [the Macros script]It is said that this script i
administrator privileges two tips, but some people say they turn on the UAC feature and sometimes need to be in some directory
Execute some commands that require administrator privileges, although you can click Run and enter "ACMD" and then switch to that directory with the "CD" command, but it's inconvenient. I went through the research, wrote a small program to solve this question
Problem.
1. From the following I made the "Administrator Command Win
Raphael Caixeta, as a developer who just started using PHP, summed up the 10-point PHP development technology, hoping to help some of the great beginners of the language:1, try to use PHP with the core functions and classes
2. Use the configuration file skillfully
3, always pay attention to the data to be written into the filter
4, development phase open Error Tips
6, the collection of favorite pieces of code and put in a place that is easy to find
7,
string2
Syntax
Grammar
STRNCASECMP (String1,string2,length)
parameter Parameters
Description Description
String1
Required. Specifies the "a" to compareNecessary parameters. Specifies the first string object to participate in the comparison
string2
Required. Specifies the second string to compareNecessary parameters. Specifies the second string object to participate in the comparison
Length
Required. Specify the number of characte
In the previous list of programming languages, we introduced the JavaScript language of the impending regularization, as illustrated in the article, that JavaScript is not only the most dynamic scripting language, but also one of the most useful programming languages. Because the vast majority of browsers are compatible with it, you can use it in these browsers. JavaScript is accepted fairly quickly because it is so simple and has a fairly wide range of uses. Many programmers used to think of Ja
MySQL is a powerful open source database. With more and more database-driven applications, people have been pushing MySQL to its limits. Here are 101 tips for adjusting and optimizing MySQL installation. Some of the tricks are specific to the installation environment, but these ideas are generic. I've divided them into several categories to help you learn more about MySQL's tuning and optimization skills.
MySQL server hardware and operating system tu
Readme:
This document records the functional use instructions for the Suggestion.js file:
Copy Code code as follows:
/*
* Function: The JS file in the code to achieve the [input automatic search tips] function, such as Baidu, Google search box to enter some characters will be the following Drop-down list form gives some hints, improve the user experience;
* Using technology: Jquery+ajax
*
* One, how to use the function?
* 1. Use this
With the search engine Daxing, ranked in front of the site to introduce a lot of traffic. Whether the search page ads or the results of the search, and the target match of the searcher is relatively high (if the search engine is smart enough), so visitors from the search engine will likely get what he wants, and remember the site. That is to say, search engine will bring a lot of valuable traffic, so it is worthwhile to spend some time to optimize the WordPress blog for SEO. This article will sh
can be divided into the guidance of the front-type and the guide in the process.
Pre-boot: A series of help content that is given when the user has not formally started using the product. The main design method is the design of the Guide page. Guidance in the process: a series of help content that is given during the user's use of the product. The main design method has blank page content guidance, the loading waits the condition the guidance, the split baggage step-by-step guidance, the cleve
the identification is very poor, users are difficult to understand. So we need icons that look exquisite and mean a great thing, such as the top set.
Although the icon design is a long story and complex, the icons are great for a variety of designs.Regardless of the design, if you want to use the icon, then you must remember the following two points: Conceptual communication is perfect, visual validity.
How do I keep the visual validity of an icon?
Icons are good at organizing content, attra
Google or Yahoo search is a piece of cake. You just type a word and you'll see a lot of links to this page almost at the same time.
However, the search results usually differ from what you want. If the search term is ambiguous, there will be more unrelated links. If you type "chips", search engines simply don't know if you're looking for a computer chip (computer chips), a potato chip (potato chips) or a chocolate bean (chocolate chips). In fact, when I tried to use Google to search for "chips"
users who use the iphone know that when we plug the iphone into a power supply, there is a crisp charging beep that prompts the iphone to charge successfully. But when the Mac is plugged in, it doesn't have a charging beep. So how do you get the Mac charge beep? The following small series describes a Mac charging tips for setting tips.
Mac Charging tips
1 JavaScript array converted to CSV format
Consider the following scenario first, with a javscript character (or numeric) array that now needs to be converted to a comma-separated CSV format file. Then we can use the following tips, the code is as follows:
Copy Code code as follows:
var fruits = [' apple ', ' Peaches ', ' oranges ', ' mangoes '];
var str = fruits.valueof ();
Output: Apple,peaches,oranges,mangoes
where the
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