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What is the difference between and ? [duplicate]
...y>
After running both the JSP files you see the same output and think if there was any difference between the directive and the tag. But if you look at the generated servlet of the two JSP files, you will see the difference.Here is what you will see when you use the directive :
out.write("&l...
Representing null in JSON
... what you're doing -- sometimes the "right" way to do it doesn't always work for your situation. Use your judgement and make an informed decision.
JSON1 {}
This returns an empty object. There is no data there, and it's only going to tell you that whatever key you're looking for (be it myCount or s...
Is “for(;;)” faster than “while (TRUE)”? If not, why do people use it?
I have seen this sort of thing used a lot, but I think it is rather strange...
Wouldn't it be much clearer to say while(true) , or something along those lines?
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Accessing nested JavaScript objects and arays by string path
I have a data structure like this :
36 Answers
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What are enums and why are they useful?
...lways use enums when a variable (especially a method parameter) can only take one out of a small set of possible values. Examples would be things like type constants (contract status: "permanent", "temp", "apprentice"), or flags ("execute now", "defer execution").
If you use enums instead of intege...
How do I set the table cell widths to minimum except last column?
...itespace-wrap: nowrap is not valid css. It's white-space: nowrap you're looking for.
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How to create a dialog with “yes” and “no” options?
I am going to make a button to take an action and save the data into a database.
13 Answers
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Set initial focus in an Android application
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Tab Vs Space preferences in Vim
...nfluences the amount of whitespace to be inserted when you press the Tab key in insert mode. If expandtab is on, the tab key inserts softtabstop number of space characters. Whereas with expandtab switched off, pressing the Tab key inserts a the smallest possible number of tab+space charact...
How can jQuery deferred be used?
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The best use case I can think of is in caching AJAX responses. Here's a modified example from Rebecca Murphey's intro post on the topic:
var cache = {};
function getData( val ){
// return either the cached value or jqXHR object wrapped Promise
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