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';b.bb= ' BB 'Console.log (A.AA);Console.log (B.BB);Console.log (new B (). BB);(6) Examples of methods and variables?function A () {}var a = new A ();a.b= ' BBB ';Console.log (A.B);Console.log (A.B);(4) (5) (6) Summarize Array example???Array.Length---> Static variablesArray.isarray ()---> Static method[1,2,3].push (4)---> Example method(7) A sentence to explain the closure? Open the scope of the function

JavaScript jQuery usage and reference order Reference Order:first lead the CSS and then lead JSJS in the first cited jQuery, and then cited jabascript, and then lead their own JSUsage:JQuery needs to introduce a js file, and before all the js Code1. Find the Label:JS : document.getelement .... contains all the search codes Dom ObjectJQuery :$ ( selector ); selector contains ID Selector,class selector jQuery Objectthe following two sentences represent finding a label with ID AA and adding a c

Nested list example: [[' AA ', ' BB ', ' 2 "," NN "],[" AA "," BB "," a "," NN "],[" AA "," BB "," a "," NN "],[" AA "," BB "," a "," NN "],[" AA ", "BB", "],[", "nn", "AA", "BB", "I", "nn"] we want to sort the third field of th

transmission of the network is "frame", inside the frame is the target host MAC address. In Ethernet, a host to communicate directly with another host, you must know the target host's MAC address. But how does this target MAC address get? It is obtained through the Address Resolution Protocol. "Address Resolution" is the process by which a host converts a target IP address to a target MAC address before sending a frame. The basic function of ARP protocol is to inquire the MAC address of target

then described in a simplified set of data. Consider the following two datasets, noting that some elements are in a, not in B, and vice versa.Set Set "B" AA BB -- ------ -------- 1 3 24 3 5 4 6Left OUTER JOINNow execute the following SQL statement (left connection, OUTER join):SELECT * from Left OUTER JOIN on = BbYou will get the following result (blank element representation NULL ):AA BB -- ------ ---

1. Command functionRmDir: Delete Empty directory2. Command formatrmdir [Options] Directory3. Command parameters-P: Recursive delete-V: Show more information4. Command instancesExample 1: Cannot delete a non-empty directory[[email protected] ~]# lsAA ABC anaconda-ks.cfg Desktop file1 file2 gg install.log install.log.syslog[[email protected] ~]# rmdir AARmdir:aa:Directory not emptyExample 2: Recursive deletion of empty directories[Email protected] ~]# MKDIR-PV AA/

, cat-a using MAC address Aa-aa-aa-aa-aa-aa).First step: Select the root bridgeAll switches need to select a unique root bridge by looking for the minimum bridge ID (BID). Remember, in "STP economics", the smallest bid wins! The process of choosing the minimum bid bridge is often accompanied by an exciting title named "Root Wars" As with the bridge ID discussed earlier, a bid is a 8-byte identifier consisting of a bridge priority and a MAC address, and from figure 6-6 you can see that Cat-a h

')-TO_DATE ('2017-12-01 ', 'yyyy-MM-DD ') --------------------------------------------------------------------- 11 -- The result of subtraction is a day. SQL> c/1999-12-12/1999-01-12 1 * select to_date ('2017-01-12 ', 'yyyy-mm-dd')-to_date ('2017-12-01', 'yyyy-mm-dd') from dual SQL>/ TO_DATE ('2017-01-12 ', 'yyyy-MM-DD')-TO_DATE ('2017-12-01 ', 'yyyy-MM-DD ') --------------------------------------------------------------------- -323 -- It can also be a negative number. SQL> c/1999-01-12/2999-

A question about DISTINCT. Some people often ask questions similar to this. The data in the table is as follows: idaabb201734561453554160656416065625066426063898920.00002. expected results are that some people often ask questions similar to this, The data in the table is as follows: ID AA BB 1 123 456 1 4535 54 1 60 6564 1 60 656 2 50 664 2 60 6 3 89 4 40 4242 The expected result is: ID AA BB 1 123 456 2 50

Serialization should be no stranger to everyone, especially now that there is a lot of webapi,json flying around, and serialization operations should often appear on our code.And our most commonly used serialization tool should be Newtonsoft.json, of course you use other tool classes is also no problem, we focus on not this tool, we focus on efficient and customizable control of the serialization operations.First, let's talk about the approximate serialization principle:In general, we pass an en

This article mainly introduces the problem of errors reported by reference in php5.4, and analyzes the problem and solution of errors reported by reference in php5.4 based on the instance form, which has some reference value, if you need it, you can refer to the example in this article to analyze the error message returned when you reference php5.4. We will share this with you for your reference. The details are as follows: There is no problem in transferring references from php5.3 series and e

(C,n))/llv (c,n) *100; 150, this close for the highest closing price in n days (%)　　(HHV (C,n)-c)/HHV (c,n) *100;　　 151, the relative position of the stock price in the last n days of running space　　(C-LLV (L,n))/(HHV (h,n)-llv (l,n)) *100;　　 152, n1% to n2% at the top of the stock price (%)　　Aa:=winner (c+c*n2/100) *100;Bb:=winner (c+c*n1/100) *100;Aa-bb 153, below the stock price n1% to n2% place of ch

The problem of string processing into an array: $ str quot; aa: 1, bb: 2, cc: 3, dd: 4 quot; has two requirements: 1. I want to split this string into an array, where aa, bb, cc, and dd are indexes 11, 22, and 33, and 44 are the index values, for example, $ arrArray ([aa] gt; 11, [bb] gt; 22, [cc] gt string processing into an array A string is as follows: $

In this paper, the author analyzes the php5.4 of quoted times. Share to everyone for your reference, as follows: php5.3 Series version and previous version, reference no problem, after upgrading to php5.4, the place of reference, full error Fatal error:call-time pass-by-reference have been removed in F:\work\wamp\www\test\test.php on line 6. take a look at the following example. Example 1, recursive reference, PHP 5.3 and version, test results "; $BB