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] FeaturesWhen it comes to whether a property is writable, maybe you think of the get/set accessor in C # or the ReadOnly keyword, below you'll definitely be interested in how I should do the read-only operation of the property.In JS you just have to use the DefineProperty method.From the above example, you can see three fun things:"XXX" mode, so this is the difference between JS, after all, JS does not have syntax sugar, so the definition of features

class has the necessary public properties that need to be exposed, you should also label it. We can refer to the example of Flask:?The previous voluminous had to write a lot of instructions, and then the parameters of the constructor were described later.function commentThe comment of the function should be the most complicated, because we not only describe the function of function, but also pay attention to the function's parameter and return value, the parameter need to describe the meaning o

Happy event, month to the Mid-Autumn Festival, the annual lunar August 15, is the Mid-Autumn Festival. The Mid-Autumn Festival is also called "Reunion Festival", as early as the Tang Dynasty officially became a festival, has been thousands of years of history, the traditional activities of the Mid-Autumn Festival is a reunion of the Moon, eat Moon cakes. So people have been Ching as the most humane, most poetic of a festival. But since 08 has become a legal holiday, the Mid-Autumn Festival for y

The system needs to be installed, whether it's a newly purchased computer or a system crash. Many people are afraid of the installation of pirated systems, even if the actual installation of the system is genuine, once the computer encountered what kind of problems, will complain that they installed the system of piracy, so many marketers are dumb to eat coptis, there are bitter can't say. But also can not complain about the user after all, the pirate system will not be aboveboard display on the

A, Taobao video live in where Taobao in the mobile phone we open the "hot market" below, "daily good shop" and then here will see a "live Taobao", as shown in the picture: Second, Taobao how to see Live and video Then in the Taobao live list of the interface we click on "More", where you can see different Taobao live classification, as shown in the pi

Login your QQ love fart, can not find QQ whisper to me, click on the contact icon, see the upper right corner of life service icon. Click on the Live Service menu, drop down to the last one, see QQ whispering Options, click Open. Into the QQ chat interface, you can see the loss of friends just sent you the message, click on the top of the blue bl

computer hardware knowledge must see Computer Configuration upgrade Knowledge First, processor CPU knowledge Classification of ①CPU CPU brands have two camps, respectively, Intel (Intel) and AMD, the two industry bosses almost monopolize the CPU market, we take apart the computer to see, but also Intel and AMD brand (of course, not excluding the extremely small cottage of the CPU). Intel's CPUs are divid

These questions are seen in the German question, it is very interesting, bring to share the trap, see you will not fall into it. First question. Copy Code code as follows: $arr = Array (0=>1, "AA" =>2, 3, 4); foreach ($arr as $key => $val) { Print ($key = = "AA"? 5: $val); } How much is the output result? If the answer is 1534, it falls into the trap. Let's take a look at the structure that the array eventually forms:

Step one, Windows view all ports Click on the beginning of the lower left corner of the computer, then select the Run option, and then we in the pop-up window, enter the "cmd" command, for the command prompt. Then we enter "Netstat-ano" in the window and press ENTER, which shows all the port occupancy. As shown in the figure: Step two, query the specified port occupancy In the window, continue to enter the "Netstat-aon|findstr" prompts the port "", such as the small prompts the po

official website view: Three, grammar The most commonly used ES6 characteristics Let, const, class, extends, super, arrow functions, Template String, destructuring, default, rest argumentsThese are the ES6 most commonly used grammar, basically learn them, we can travel around the world are not afraid of it. I will use the most understandable language and examples to explain them, to ensure that a look at the understanding, a learning will. 1. Let, const These two uses are similar to Var and are

Hello everybody, I am the kiness of Hunan push. Today, Hunan SEO Small series to introduce the content of the site, how to write the article is more conducive to search engine optimization it? A lot of webmaster is just a mechanical collection of articles, some collected after the false original after the release to their website, resulting in the article is not readable, very long time the site's collection, rankings, weights are not up. But the site content not only to users to

Oneself a website ranking has been very good, suddenly one day but dropped, just started to think the problem of operation, so updated a few articles, do a few more outside the chain, a week passed, still not good. This time I go to search the keyword of the website, want to go to see everybody's rank how, the result finds all drop, the homepage is mostly the channel page of main station or inside page, a lot of info, CO, CC and two class domain name

From November 5 Baidu a press release to inform everyone, Baidu to carry on the link algorithm updated, let me have been observing to now, see Baidu in the end for the link to buy the site how many effect, see Baidu to link this piece to have how big influence, also ask a little bit, Link trading is really the end of the end, after all, now we sometimes need to use some outside the chain to make our site mo

June 14 was fortunate to participate in Baidu for the promotion of security training courses, enterprises for the promotion of the promotion of Baidu has been a combination of investment SEO natural optimization, yesterday's enterprises have tourism, machinery, medical and so on, through nearly 3 hours of communication, I personally have gradually realized the simple SEO skills, The first thing every day 8 is to see what changes Baidu has, what update

The analysis of the keyword competition degree is the first thing we need to do to optimize the website, if we start on the wrong choice Key words, and finally all the optimization is a cloud, down to simply say how to analyze a keyword competition degree. Analysis of a keyword competition generally has four "see": 1, look at the total related pages When search in the search for keywords to show the relevant page is that you want to compete with t

renamed as "Day Cat online shopping", is based on the strategy of the cat gene and its future strategic prospects for decision-making, but also the formation of Alibaba Group and further improve the ecological system strategic decision. "Amazon is not only a river, but also the world's great business E-commerce, Starbucks is not coffee, but it represents the largest coffee chain giants and culture; what is a cat? It should be synonymous with fashion, trends, quality, sexuality and embodiment.

For stationmaster, the website is like another oneself, believe as many stationmaster will do the same thing, that is to see the keyword rank First, snapshot, collect, outside chain in the morning, why say the website like another oneself? When we see the results of the query within our expectation, Our day of work will be very relaxed, otherwise the day will be very depressed. Especially when we

has the supreme status of effective. However, the flow of a site is still a lot of things to determine the factors. In any case, it is the decisive factor in any connection with this site. Referring to the views of friends, counter fire again for everyone to do a simple analysis. More diverse sites, smarter webmaster, more complex forms of advertising, more pragmatic advertisers. Now, to judge a website traffic method, with the times. To sum up, there are approximately several methods: Flow s

See the title you know, but this article is to spit slot Baidu user experience. Of course, we do not misunderstand, but today's user experience, not the last kind of Zac Teacher's blog was kicked down Baidu home page, "God horse nets" strong insert this kind of thing, but today to be regarded as a personal experience, to say that their contact with the SEO and site user experiences. Say so, first of all we have to talk about the career: a network com