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How to get first 5 characters from string [duplicate]
...5);
The second argument to substr is from what position what you want to start and third arguments is for how many characters you want to return.
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What is time_t ultimately a typedef to?
...y 32 or 64 bits wide)
which represents the number of seconds
since the start of the Unix epoch:
midnight UTC of January 1, 1970 (not
counting leap seconds). Some systems
correctly handle negative time values,
while others do not. Systems using a
32-bit time_t type are susceptible to
...
How can I do something like a FlowLayout in Android?
...lexWrap = FlexWrap.WRAP
layoutManager.justifyContent = JustifyContent.FLEX_START
layoutManager.alignItems = AlignItems.FLEX_START
recyclerView.layoutManager=layoutManager
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What's the difference between Cache-Control: max-age=0 and no-cache?
...I can't vouch for its correctness):
In practice, IE and Firefox have
started treating the no-cache
directive as if it instructs the
browser not to even cache the page.
We started observing this behavior
about a year ago. We suspect that
this change was prompted by the
widespread ...
Why does this code using random strings print “hello world”?
...
@rootTraveller For a start, new Random() doesn't return a number at all.
– user253751
Mar 7 '17 at 7:25
2
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Select elements by attribute in CSS
...s worth noting CSS3 substring attribute selectors
[attribute^=value] { /* starts with selector */
/* Styles */
}
[attribute$=value] { /* ends with selector */
/* Styles */
}
[attribute*=value] { /* contains selector */
/* Styles */
}
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Ruby max integer
...
Whoops, I guess I started thinking too much about bytes instead of bits.
– Matthew Crumley
Feb 11 '09 at 12:53
10
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How do I “source” something in my .vimrc file?
...your source files. So plugins you use every time could be sourced when you start up Vim by adding a line to your .vimrc like this
so myPlugin.vim
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Java - sending HTTP parameters via POST method easily
...connection after you have opened the connection.
This code should get you started:
String urlParameters = "param1=a&param2=b&param3=c";
byte[] postData = urlParameters.getBytes( StandardCharsets.UTF_8 );
int postDataLength = postData.length;
String request = "http://exampl...
How to convert a string to an integer in JavaScript?
... kind of error on bad input, instead you'll get back NaN unless the string starts with a number. Whitespace at the beginning of the string is ignored. Here's an example of it doing something different to what you want, and giving no indication that anything went wrong:
var widgetsSold = parseInt("9...