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How to concatenate two strings to build a complete path
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Except if $part1 can be empty string.
– Tuure Laurinolli
Jan 2 '17 at 14:36
1
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When should I use File.separator and when File.pathSeparator?
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If you mean File.separator and File.pathSeparator then:
File.pathSeparator is used to separate individual file paths in a list of file paths. Consider on windows, the PATH environment variable. You use a ; to separate the f...
Responding with a JSON object in Node.js (converting object/array to JSON string)
...ole.log("response.json sets the appropriate header and performs JSON.stringify");
response.json({
anObject: { item1: "item1val", item2: "item2val" },
anArray: ["item1", "item2"],
another: "item"
});
}
Alternatively:
function random(response) {
console.log("Request handler ran...
How do I convert a String to an int in Java?
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String myString = "1234";
int foo = Integer.parseInt(myString);
If you look at the Java documentation you'll notice the "catch" is that this function can throw a NumberFormatException, which of course you have to handle:
int foo;
try {
foo = Integer.parseInt(myString);
}
catch (NumberF...
pandas read_csv and filter columns with usecols
...nts.
names is only necessary when there is no header and you want to specify other arguments using column names rather than integer indices.
usecols is supposed to provide a filter before reading the whole DataFrame into memory; if used properly, there should never be a need to delete columns afte...
Escaping a forward slash in a regular expression
... don't need to escape it. But AFAIK in all languages, the only special significance the / has is it may be the designated pattern delimiter.
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Trim a string based on the string length
I want to trim a string if the length exceeds 10 characters.
11 Answers
11
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How to redirect to a dynamic login URL in ASP.NET MVC
...ages for clients. The first segment of the URL will be a string which identifies the client, defined in Global.asax using the following URL routing scheme:
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How to create a protocol with methods that are optional?
...and @required to partition
your protocol into sections as you see
fit. If you do not specify any
keyword, the default is @required.
@protocol MyProtocol
- (void)requiredMethod;
@optional
- (void)anOptionalMethod;
- (void)anotherOptionalMethod;
@required
- (void)anotherRequiredMethod;
@en...
How to place two divs next to each other?
... 500px;
border: 1px solid black;
overflow: hidden; /* will contain if #first is longer than #second */
}
#first {
width: 300px;
float:left; /* add this */
border: 1px solid red;
}
#second {
border: 1px solid green;
overflow: hidden; /* if you don't want #second to wrap be...