大约有 2,210 项符合查询结果(耗时:0.0463秒) [XML]

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What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?

...; number = [NSNumber numberWithChar:'X']; number = [NSNumber numberWithInt:12345]; number = [NSNumber numberWithUnsignedLong:12345ul]; number = [NSNumber numberWithLongLong:12345ll]; number = [NSNumber numberWithFloat:123.45f]; number = [NSNumber numberWithDouble:123.45]; number = [NSNumber numberWi...
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What does -> mean in Python function definitions?

...versions. According to this, the example you've supplied: def f(x) -> 123: return x will be forbidden in the future (and in current versions will be confusing), it would need to be changed to: def f(x) -> int: return x for it to effectively describe that function f returns an ob...
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What data type to use for money in Java? [closed]

...yAmount = amountFactory.setCurrency(Monetary.getCurrency("EUR")).setNumber(12345.67).create(); MonetaryAmountFormat format = MonetaryFormats.getAmountFormat(Locale.getDefault()); System.out.println(format.format(monetaryAmount)); When using the reference implementation API, the necessary code is m...
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How can I sort arrays and data in PHP?

... Might be a bit of a big edit: gist.github.com/Rizier123/24a6248758b53245a63e839d8e08a32b but if you think it is an improvement and I included everything essential I can apply it. – Rizier123 Jun 2 '16 at 16:30 ...
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Does MSTest have an equivalent to NUnit's TestCase?

...a4b5", "345")] [DataRow("3&5*", "35")] [DataRow("123", "123")] public void StripNonNumeric(string before, string expected) { string actual = FormatUtils.StripNonNumeric(before); Assert.AreEqual(expected, actual); } } Again, V...
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Remove commas from the string using JavaScript

...aximumFractionDigits: 2 }) // Good Inputs parseFloat(numFormatter.format('1234').replace(/,/g,"")) // 1234 parseFloat(numFormatter.format('123').replace(/,/g,"")) // 123 // 3rd decimal place rounds to nearest parseFloat(numFormatter.format('1234.233').replace(/,/g,"")); // 1234.23 parseFloat(numFo...
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How to pattern match using regular expression in Scala?

...Regex(sc.parts.mkString, sc.parts.tail.map(_ => "x"): _*) } scala> "123" match { case r"\d+" => true case _ => false } res34: Boolean = true Even better one can bind regular expression groups: scala> "123" match { case r"(\d+)$d" => d.toInt case _ => 0 } res36: Int = 123 sc...
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Is REST DELETE really idempotent?

...ot all-effects or responses. If you do a DELETE http://example.com/account/123 then the effect is that account 123 is now deleted from the server. That is the one and only effect, the one and only change to the state of the server. Now lets say you do the same DELETE http://example.com/account/123 ...
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java.util.regex - importance of Pattern.compile()?

...ch is really called a lot :) public class AmountValidator { //Accept 123 - 123,456 - 123,345.34 private static final String AMOUNT_REGEX="\\d{1,3}(,\\d{3})*(\\.\\d{1,4})?|\\.\\d{1,4}"; //Compile and save the pattern private static final Pattern AMOUNT_PATTERN = Pattern.compile(AM...
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Regular expression to match numbers with or without commas and decimals in text

... are embedded in other text. IMHO anything that fails to pull 1,234.56 and 1234—and only those numbers—out of abc22 1,234.56 9.9.9.9 def 1234 is a wrong answer. First of all, if you don't need to do this all in one regex, don't. A single regex for two different number formats is hard to maintain...