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What is the meaning of id?
...ods. There's even an automatic conversion tool in Xcode for changing that.
Read about instancetype: Would it be beneficial to begin using instancetype instead of id?
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@RequestParam in Spring MVC handling optional parameters
...d because logout wasn't a mandatory parameter thanks to required = false already given for logout.
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Using a constant NSString as the key for NSUserDefaults
I'm using NSUSerDefaults to store user preferences. I remember reading somewhere that setting the keys as constants is a good idea - and I agree. The following code is what I currently have:
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JavaScript checking for null vs. undefined and difference between == and ===
... typeof comparison above), == and === will behave exactly the same.
More reading:
Angus Croll's Truth, Equality and JavaScript
Andrea Giammarchi's JavaScript Coercion Demystified
comp.lang.javascript FAQs: JavaScript Type-Conversion
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Flexbox: center horizontally and vertically
...ter;
-webkit-justify-content: center;
justify-content: center;
You could read this two links for better understanding flex:
http://css-tricks.com/almanac/properties/j/justify-content/ and
http://ptb2.me/flexbox/
Good Luck.
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In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
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Use whatever you and your team find the most readable.
Other answers have suggested that a new string is created every time you use "". This is not true - due to string interning, it will be created either once per assembly or once per AppDomain (or possibly once for t...
Wait until all jQuery Ajax requests are done?
...int regarding the fact that fail behaves differently as done, some further reading to be done about Promises I guess html5rocks.com/en/tutorials/es6/promises
– Adrien Be
Sep 11 '14 at 8:57
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Spring CrudRepository findByInventoryIds(List inventoryIdList) - equivalent to IN clause
...n listing. It shows that IsIn is equivalent – if you prefer the verb for readability – and that JPA also supports NotIn and IsNotIn.
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Calling class staticmethod within the class body?
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After further reading I see that __func__ is just another name for im_func and was added to Py 2.6 for Python 3 forwards-compatibility.
– martineau
Oct 4 '12 at 0:06
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Is !important bad for performance?
...orm part of the selector, only part of the declaration)
However, as has already been stated, it will reduce the maintainability of your code, and thus likely cause it to grow unnecessarily in size due to future changes. The usage of !important would also likely reduce developer performance.
If you...