All Questions

what is !! (not not) operator in JavaScript? how it useful in JavaScript coding and how to use it ?

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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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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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trying to convert array or object to JSON format ,

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how to remove a key or value or full key / value pair from JSON which is received by Ajax in JavaScript ?

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how to remove a property from a JavaScript Object ? example object :: need to remove element selector from a JavaScript Object , or some time alter value / remove value of a property from a JavaScript Object ? how we can remove property of JavaScript Object with best coding standard , with best way so it give us good performance for removing thousands of the Object ?

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convert array ---> ArrayList suppose array is defined like this whether it auto type conversion array to ArrayList or any conversion method or what ?

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how to get current URL by JavaScript or by jQuery suppose i am browsing http://www.example.com/direct/json.html#hash_value it i should get value of Url exact :: http://www.example.com/direct/json.html . if there is #hash_value than it should be removed.

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what is max length can be of a URL In differ browser , by any programming language(JavaScript) can we test it , so where it actually give us error by saying we reach at max length of the URL by browser limit

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What is difference between URL , URI and URN ? is there any differnce or all are the same in simple word please explain URL vs URI vs URN

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what is JavaScript Closures ? How JavaScript Closures work ? how it be useful over simple function in JavaScript ?

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how to encode URL in JavaScript need to encode URL when passing it as query string in URL in javascript

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How to get Query String from URL at JavaScript or any framework like jQuery , Mootools .i want to avoid extra over head of bytes so i want to keep it with JavaScript core . but if easy to do with framework or plugin . i can try it out .

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how to get video id form YouTube video URL in JavaScript . may be by JavaScript Regex or any other way . it should work with any format of url but return video id . so i can use it with other server call

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which is the best way to sanitize user input with PHP ? user input is open gates to system . so if we do not secure this gate , than many malware and virus enter in system which lead website crash and system shutdown. some time cause non recoverable situation so is there any strong and secure filter which we apply to website gates so there is no loss at long time by hacker.

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how to get YouTube video thumbnail by YouTube API ? by calling web api through CURL and PHP ,is it possible to get YouTube video thumbnail ?

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what is difference between keyword "Static" and "final" keyword in java , what are the use of it so we can justify and utilize object oriented concept , if good example will great help

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want to know pros and cons of gcc and g++ ? what is difference between gcc and g++ ? which one is good for C++ development ?

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how to make HTTP REQUEST in c++ ? trying to call web api for checking latest install of software and inshort on calling HTTP REQUEST it give me some info and need to use it in c++ so how one can make HTTP call to server in c++ ?

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how to Copy to clipboard by JavaScript after getting value of textarea or input box . how to copy it to clipboard so one can paste at where he want.

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