by fatso | 10/01/17 | 1 Answers | Tags : Sql , indexing , database-indexing , performance Views : 171
How does database indexing work?

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by fatso | 10/01/17 | 0 Answers | Tags : Javascript , static , variable Views : 134
how to create static variable in JavaScript ?

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by sqltreat | 09/01/17 | 0 Answers | Tags : Mysql , UPDATE-QUERY Views : 124
how can UPDATE table 's field value from SELECT query in MySQL

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by sarah | 09/01/17 | 2 Answers | Tags : jQuery , Javascript , redirect , url-redirect Views : 178
How to redirect one to another page in JavaScript ? what is the best code to do redirection one page to another in JavaScript ? is jQuery or dojo or any other framework do redirection best or pure JavaScript is enough ?

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by shabi | 09/01/17 | 0 Answers | Tags : jQuery , Javascript Views : 123
on the click of the content displaying textarea to edit the content. now want to remove textarea on click outside of the textarea ? how to detect outside click for an element in jQuery ?

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by yogi | 09/01/17 | 1 Answers | Tags : jQuery , Javascript Views : 75
in jQuery .hide() used to hide element .show() used to show element .toggle() used to show/hide element but is there a function which used to check is element hidden ? or is element already visible ? i mean before to use .show() , .hide() , want to check isHidden() or isVisible() for element in jQuery ?

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by jessica | 09/01/17 | 1 Answers | Tags : HTML , XHTML , best-way-to-code , meta-tag Views : 249
HTML5 Doctype had so what is difference between <meta charset="utf-8" /> and <meta http-equiv="Content-Type" > ? and what is pros and cons over each other ? which one is best to use between <meta charset="utf-8" /> and <meta http-equiv="Content-Type" > ? i used both in some web application . but did not find good difference between , so which is best to use for which purpose between <meta charset="utf-8" /> and <meta http-equiv="Content-Type" > ?

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by Rasi | 07/01/17 | 1 Answers | Tags : Javascript , prototype Views : 158
how prototype work in JavaScript ? i mean its alternative of the object if no why one should use prototype in JavaScript ? why one do use prototype and what is benefit of using .prototype ?

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by noob | 07/01/17 | 2 Answers | Tags : Ruby , include , extend Views : 168
what is difference between include and extend in Ruby?

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by noob | 07/01/17 | 1 Answers | Tags : Ruby , include , require Views : 188
what is difference between include and require in Ruby? include seems to include file and require seems to only if file is required. so am guessing good ? include vs require in Ruby , need to know pros and cons of include and require in Ruby .

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by noob | 07/01/17 | 1 Answers | Tags : PHP , include , include_once , require , require_once Views : 159
include , require , include_once , require_once all function do include file . above code will include include.php , include_once.php , require.php , require_once.php if all do include file so what is the difference between include , require , include_once , require_once ?

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by ajamil | 07/01/17 | 2 Answers | Tags : objective C , import , include Views : 175
it seems #import and #include both do same job , #import and #include both do include header file . so why one made two function do the same work. so is there any difference between #import and #include ? or #import and #include are same .

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by Rasi | 07/01/17 | 1 Answers | Tags : Javascript , import , include Views : 131
how one can include one JavaScript file to another JavaScript file ? as like css have @import to include another css . do we have same import function or something to include JavaScript file to another JavaScript file

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by web-api | 07/01/17 | 2 Answers | Tags : Javascript , use-strict Views : 145
what is use of "use strict" in JavaScript ? i got many library or code in JavaScript which have used "use strict" so "use strict" stand for what ? how to use "use strict "? and what is reason behind for use of "use strict" ?

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by denyy | 06/01/17 | 2 Answers | Tags : Javascript , operators Views : 179
where i should use == (double equal to) operator and === (triple equal to) operator ? what is the difference between == (double equal to) operator and === (triple equal to) ? i know (single equal to) = used as assignment operator . it assigns values , suppose still it give of mycode's value if it equal to 10 so it seems both == (double equal to) operator and === (triple equal to) operator had same behavior . so why one made extra operator === (triple equal to) operator, it had to some reason and math behind the === (triple equal to) operator , so please tell me what is the difference between == (double equal to) operator and === (triple equal to) ?

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by noob | 06/01/17 | 1 Answers | Tags : Ruby , Spaceship-Operator Views : 161
how Spaceship Operator ( <=>) work ? what it means when we say x<=>y and how it interact with array what this give us result ? optional info i need is , all other language like PHP , Python , have Spaceship Operator ?

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by Rasi | 06/01/17 | 2 Answers | Tags : Javascript , not-not-operator , operators Views : 162
what is !! (not not) operator in JavaScript? how it useful in JavaScript coding and how to use it ?

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by rajiv | 06/01/17 | 2 Answers | Tags : PHP , best-way-to-code , PHP-7 , Spaceship-Operator , how-it-work Views : 199
PHP 7 had introduced new operator <=> called the Spaceship Operator . so what it does ? what is best use of it ? is it help or increase load of web application ?

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by Rasi | 06/01/17 | 0 Answers | Tags : JSON , comments , data-exchange-with-comment Views : 175
Is that possible to use comment in JSON . like sending data to one server to another server , server to Client side . is that possible we can send comment along side with data Can comments be used in JSON , IF yes how is that possible to use comment in JSON ?

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by Rasi | 06/01/17 | 0 Answers | Tags : Javascript , JSON , serialize Views : 191
trying to convert array or object to JSON format ,

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