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For an array of primitive type elements , you can use the indexof () artifact directly, return the subscript of the element in the array, and return 1 if not found: var arr = [1,2,3,4,5]; var index = Arr.indexof (3); 2 For arrays with objects as elements , there is no direct function to use, but there is a filter () method that creates a new array in which the elements in the new array are checked for all elements that match the criteria in the specified array, so that at least you can filter

documents, you can shorten the time for document exchange between different entities, resulting in faster processing of data. To try this example of a good compression/decompression code, you can access www.xmlforasp.net/codeSection.aspx?csID=95. About the Author: Dan Wahlin (asp.net's Microsoft MVP) is President of Wahlin Consulting LLC and has created XML for ASP.net Developers Web site (Www.XMLforASP.NET), which focuses on how to use XML and Web

each request The size of the message seems to have a big impact on every other aspect. When the message increases, it takes up more CPU time to deserialize, consumes more memory to save the result data, more network bandwidth and IO for database read and write operations, all of these add up to affect the total processing time. However, even small requests, such as discounting all pending orders for a partner, are affected by the amount of data being processed. We checked all the things and n

Tags: Linux user passwd9.2 "Linux learning is not difficult"User Management (2):/etc/passwdFile Details/etc/passwdfile isLinuxThe system identifies an important file for the user,Linuxall users in the system are logged in the file. Assume that the user has an accountZhangsanwhen you log in to the system, the system first checks/etc/passwddocument to see if there isZhangsanThis account and then determine the userZhangsanof theUID, throughUIDto confirm the identity of the user and read if there is

, and sometimes envy Microsoft. Net, Studio, because they are indeed very convenient and practical to use. However, the free atmosphere advocated by the Java World "Everything comes from technology, everything comes from openness" has entered my blood! I am pursuing a kind of free and perfect ideal technology. I hope Java can also have a powerful visualization tool! I think it's just as easy as you are! After reading yuan honggang's point of view on "Ajax + JSF", I really appreciate it. If Ap

=" Wkiom1rzvlctlqh_aagia5jatuq221.jpg "/>Note: The above is a non-brain string splicing, we recommend that you use the string concatenation when using the StringBuilder class append () method to splice, because the string is immutable, in each + new string, you have to reallocate memory, inefficient, although you do not feel, But it is not advisable to use this. And the efficiency of StringBuilder is much higher.A brief summary is as follows:Comparison of the three in execution speed:StringBuild

feature is not supported in Javascript ). All you need to do is pass the object to the JSON. Stringify () method. See the following example:Copy codeThe Code is as follows:Var oCar = new Object ();OCar. doors = 4;OCar. color = "blue ";OCar. year = 1995;OCar. drivers = new Array ("Penny", "Dan", "Kris ");Document. write (JSON. stringify (oCar )); This code will output the following JSON string:{"Doors": 4, "color": "blue", "year": 1995, "drivers": ["P

different:Get, Tomcat will be the default environment encoding iso-8859-1 Way to decode, this will cause the Chinese language to become garbled, to solve this problem, you can reverse code, new string ("garbled string". GetBytes (" Iso-8859-1 ")," UTF-8 "), can be displayed normally.Post, it is not decoded with Tomcat's default encoding, but is decoded by the encoding in the filter you set (for example, you set UTF-8).There are, of course, other ways and means, such as you can do two times url

are looking. I wrote a php program to search file content in batches. I used it to scan file signatures. Now I post the code for your reference. The Code is as follows: If ($ _ POST ['submit '] = 'start '){$ Total = 0; // total number of files$ Dangerous = array (); // dangerous File$ Dangerous_content =$ _ POST ["sstr"];$ Find_path = $ _ POST ["searchpath"];$ Shortname = $ _ POST ["shortname"];Echo"";Echo"";Echo"";Echo" ";Echo"";Echo"";$ Begin_time = date (

According to foreign media reports, Apple did not release any hardware products at yesterday's Global developer conference. The move is unsettling for some media and columnists, and this is where the discussion begins. Is Apple a hardware company or a software company? Forbes ' Tuesday commentary notes that Apple is in fact an ecosystem company.The following is the content of the text of the Forbes Commentary:The controversy over whether Apple is a hardware company or a software company has exis

girl slipped out to buy things at noon. It is estimated that the company is very close. It is a tourist for men and women who don't take anything and won't go far. You went out to work and took a bag, at first glance, it is official business. At this time, it is estimated that it will not be near. The man said, you are right. Go to Baoshan ." "Can anyone in pajamas Take a taxi at the entrance of the supermarket or at the subway station be far away? May I go to the airport? The airport will not

shady characters): A list apart The W3C CSS validation service The W3C markup validation service The way forward with web standards | Kit | maccaws.org The web standards project The weekly standards They are just tools man» whitespace Tim Berners-Lee To hell with bad browsers: A list apart Two columns with color Twothirty Media Inc.-We build websites. Web Design Vancouver, British Columbia, Canada Updated simple CSS tabs | silverorange labs Validating XHTML with Dreamweaver MX Veer

exercises. Previous and next book2009.06.23 University Physics solution and review preparation2009.06.23 resource science: member library of the Chinese engineering institute4th 9.06.23 Java programming.2009.06.23 Java2 core technology. Volume I: Basic knowledge2nd 9.09.09 Java advanced programming.2009.09.09 questions about probability theory and mathematical statistics2009.09.09 competitive intelligence in the Network Environment9.09.09 Java2 core technology. Volume I: Basic knowledge2nd 9.09

slipped out to buy things at noon. It is estimated that the company is very close. It is a tourist for men and women who don't take anything and won't go far. You went out to work and took a bag, at first glance, it is official business. At this time, it is estimated that it will not be near. The man said, you are right. Go to Baoshan. " "Can anyone in pajamas Take a taxi at the entrance of the supermarket or at the subway station be far away? May I go to the airport? The airport won't let her

2) Dan Xinyi to Liaoyang 2Before I knocked on the door, I hesitated for so long, mainly because I was wondering, "Will she let me in if mm came out to open the door? If someone else opened the door, what should I say? ". It seems a bit funny now. In fact, you don't have to hide yourself from me. If you try your best to pursue it, you can see her and see her.I took a deep breath and determined that my heartbeat was within the normal frequency range. I

prone to chronic labor loss. 1. Clinical Manifestations The symptoms of shoulder inflammation are chronic. In the early stage, shoulder pain is unbearable, especially at night. Sleeping often due to shoulder pressure and specific sleeper, difficult to turn over, more than pain, cannot fall asleep. If the initial treatment is not proper, it will gradually develop into a restricted shoulder joint movement, which cannot be lifted and will be frozen. It often affects daily life. It is difficult to

If you have read the Qing Dynasty or the Chinese costume drama, you may understand these two historical figures: Huang Taiji and Dorje. Today, let's briefly talk about the relationship between the two people, and then let us talk about it. Dorje is the brother of Huang Taiji, who has the same father and mother. According to my historical materials and my personal figures, the reason why Dorje becomes the shooting King behind is actually highly related to the careful cultivation of Huang Taiji. F

Lao Tzu: "Dao, Dao; non-hengdao ." Original: "name, nameable, non-constant name ." For example, "AMITABHA !" Sun Wukong @ rulai: "AMITABHA! Boss wei wu !" Lord: "What is it meaning ?" Nvwa: "bored. Why did you talk about it for thousands of years ?" Promise: "A little swordsman who works quietly pays tribute to the great gods here! Great God V5 !" Xiao Dan, a monk: "New Pink! Mutual powder !" Unknown Merchant: "The best practice, as long as five piece

HTML5 placeholder is not supported on IE. Solution Add directly to the webpage You can. // JavaScript Document(function($) { /** * Spoofs placeholders in browsers that don‘t support them (eg Firefox 3) * * Copyright 2011 Dan Bentley * Licensed under the Apache License 2.0 * * Author: Dan Bentley [github.com/danbentley] */ // Return if native support is available. if ("

The Roundtable summations: 11 Views on Java's biggest challengesIndustry already ists set the agenda for Java directions in the year aheadBy Dan rub Http://www.ftponline.com/javapro/2003_06/online/roundtable_03_06_25/ AT the close of the 2003Java proTechnology Roundtable, held two weeks ago during javaone in San Francisco, fig asked to assess the greatest challenges facing Java technology and the Java Community. here are their replies. the par