No.8The existing code is as follows:var foo = 1;function Main () {Alert (foo);var foo = 2;Alert (This.foo)This.foo = 3;}1. Please give the following two ways to call the function when the alert results and explain the cause.var m1 = Main ();var m2 = new Main ();2. If you want var m1 = Main () to produce a M1 that is exactly the same as the previous M2, how do I change the main function?1, var m1=main (), th
Http://www.cnblogs.com/wentingtu/archive/2012/03/30/2425582.htmlR function more Complete blogSeeking redundancyy = 5; x = 2; y%%x = 1;MATLAB mod (y,x);R y%%x;Number of rows to fetchMatlab size (m,1);R Nrow (m);Repeating matrix1 2 3->1 2 3 1 2 3Matlab Repmat (m,i,j) repeats I times by row, repeating J times by column. Use Repmat (m,1,2) as aboveIf you want to reach 1 2 31 2 3 effect with Repmat (m,2,1)R Rep (m,2) repeats by columnMerging matricesM1= 1 2 3 m2
, ROW_NUMBER () OVER (partition by id order by id) AS level_num
FROM EmployeT
), Mike2 (
SELECT id, name, deptIds, CAST (deptName as nvarchar (100) AS deptName, level_num
FROM mike
WHERE level_num = 1
UNION ALL
SELECT m. id, m. name, m. deptIds, CAST (m2.deptName + ',' + m. deptName as nvarchar (100) AS deptName, m. level_num
FROM mike AS m
Inner join mike2 AS m2 ON m. ID =
returned.
Therefore, the following code returns true.
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->alert(Function instanceof Function);// still true
Conclusion
1. In JavaScript, everything is an object. They all inherit from the object. Or the root node of the prototype chain of all objects is object. prototype.
2. It is very important to understand how the prototype chain mechanism works in JavaScript. No matter how complex an object is,
It shows that the CLR loads a process. In this process, there may be multiple threads. When a thread is created, it is allocated to a 1 MB stack, which is used to pass real parameters to the method and store local variables defined in the method. Stack is built from high memory address to low memory address. In the figure, the thread executes some code and some data already exists on its stack.
The most basic method should contain some "prologue" code, which is responsible for initializing the
follows:
The core part of this algorithm is the if statement in the for statement. It can be seen that the I value is added to 1 every cycle, the Select value depends on the situation. If the bigrand () % remaining value meets the if condition, the Select value will be added with 1, otherwise it will not change. Does it happen that the remaing value decreases as I increases? What is the relationship between the three values? Let's look at it again:
Suppose we want to put the result into the M
column, however, SQL SERVER does not provide string aggregation operations. However, when we process tree data, we use CTE as the relational data to make the data with a tree format. In this way, we can also convert this problem into a tree format, the Code is as follows:Copy codeThe Code is AS follows:; WITH EmployeT (-- Basic information of the employee (use outer apply to split multiple IDs and associate them with the department table)-- At this time, IDS stored in the employee table are ass
MMX command has an equivalent intrinsic. the appendix of the Manual lists all of them. They are classified into simple and composite, each simple type corresponds to one command, while the compound type corresponds to multiple commands.
GCC supports intel C/C ++ compiler intrinsics. Example:
# Include # Include /* Gcc-wall-March = pentium4-mmmx-O ins mmx_ins.c */Int main (INT argc, char * argv []){/* Use MMX to perform the dot product of the following Vectors */Short in1 [] = {1, 2, 3,
fourth step, the module URL, dependency list, state and so on to build a detection object array, for the second step detection.You can put all the code that needs to use the variables and methods in the module into the callback. Require the following code will continue to execute, so that the browser can avoid the situation of suspended animation.Implementation of the AMD Specification JS Library has: Require.js. Take a look at a require.js example://myModule1.jsdefine(function() { var m1 =
(known as M2 models). The most obvious example of the M2 model is the UML meta-model, which describes UML. The M2 model describes the features of the M1 layer and the M1 layer, such as the UML model. The last layer is the M0 layer or the data layer. It describes real-world objects.Author:: Old Wow's paw attilax Ayron, email:[email protected]Reprint please indica
class defines the ToString method, which is used to print the class name and hash code that the output object belongs to.Related instance ProgramsTest classpublic class Test {public static void main (string[] args) {Employee W1 = new Employee ("Worker1", 1000,1989,1,1); Employee W2 = W1; Employee W3 = new Employee ("Worker1", 1000,1989,1,1); Employee W4 = new Employee ("Worker4", 2000,1991,1,1); System.out.println ("W1 = = W2:" + (W1==W2)); System.out.println ("W1 = = W3:" + (W1==W3)); System.o
The improved version optimizes the problem by adding a menu to a simple JavaScript code. At the same time make the HTML page is very concise, only need to write 2 lines of code can! O (∩_∩) o
1. Use the premises, introduce a CSS file in the HTML page, and a JavaScript file. As follows:
Copy Code code as follows:
Introduce CSS file: Introducing JavaScript Files:
2. Define menu code as follows:
Copy Code code as follows:
if (document.getElementById) {
var r
The improved version optimizes the problem by adding a menu to a simple JavaScript code. At the same time make the HTML page is very concise, only need to write 2 lines of code can! O (∩_∩) o
1. Use the premises, introduce a CSS file in the HTML page, and a JavaScript file. As follows:
Copy Code code as follows:
Introduce CSS file: Introducing JavaScript Files:
2. Define menu code as follows:
Copy Code code as follows:
if (document.getElementById) {
var ro
, it has a parameter is the queue locations, it returns a three-fork tree, the root node is locations intermediate node, The left subtree is a location tree established by the left half of the locations queue, and the right subtree is established for the right half of the location queue as the Tree,tree node established for the root node's list queue.
The location tree is eventually established as follows (for the convenience of reading, the complete name of the tree node is listed in the figur
), Mike2 as (
SELECT Id,name,deptids,cast (Deptname as NVARCHAR) as Deptname,level_num
From Mike
WHERE Level_num=1
UNION All
SELECT m.id,m.name,m.deptids,cast (m2.deptname+ ', ' +m.deptname as NVARCHAR ()) as Deptname,m.level_num
From Mike as M
INNER JOIN Mike2 as M2 on m.id=m2.id and m.level_num=m2.level_num+
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