大约有 47,000 项符合查询结果(耗时:0.0775秒) [XML]

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What is the difference between `throw new Error` and `throw someObject`?

..."I'm Evil" throw will terminate the further execution & expose message string on catch the error. try { throw "I'm Evil" console.log("You'll never reach to me", 123465) } catch (e) { console.log(e); // I'm Evil } Console after throw will never be reached cause of termination. t...
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Get query from java.sql.PreparedStatement [duplicate]

...n question may return the complete SQL by just calling PreparedStatement#toString(). I.e. System.out.println(preparedStatement); To my experience, the ones which do so are at least the PostgreSQL 8.x and MySQL 5.x JDBC drivers. For the case your JDBC driver doesn't support it, your best bet is us...
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URL matrix parameters vs. query parameters

...using the @MatrixParam annotation @GET @Path("categories/objects") public String objects(@MatrixParam("name") String objectName) { return objectName; } Response green But like the Javadoc states Note that the @MatrixParam annotation value refers to a name of a matrix parameter that resid...
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How do I specify new lines on Python, when writing on files?

In comparison to Java (in a string), you would do something like "First Line\r\nSecond Line" . 13 Answers ...
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How to print the full NumPy array, without truncation?

...ld instead of a.size <= _summaryThreshold, and np.nan returns False for all >/</>=/<= comparisons. 'nan' only happens to work due to fragile implementation details of Python 2's mixed-type comparison logic; it breaks completely on Python 3. – user2357112 supports...
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How to easily initialize a list of Tuples?

... c# 7.0 lets you do this: var tupleList = new List<(int, string)> { (1, "cow"), (5, "chickens"), (1, "airplane") }; If you don't need a List, but just an array, you can do: var tupleList = new(int, string)[] { (1, "cow"), (5, "chickens"),...
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Please explain some of Paul Graham's points on Lisp

...leteness, ;; we won't concern ourselves with it (require '[clojure.contrib.string :as str]) ;; this is the interesting bit: (println (str/replace-re #"\d+" "FOO" "a123b4c56")) This snippet of Clojure code prints out aFOObFOOcFOO. Note that Clojure arguably does not fully satisfy the fourth point o...
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Why can't an anonymous method be assigned to var?

...quely determine the type. Consider your example: var comparer = delegate(string value) { return value != "0"; }; Here are two possible inferences for what the var should be: Predicate<string> comparer = delegate(string value) { return value != "0"; }; // okay Func<string, bool> co...
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Android encryption / decryption using AES [closed]

...= 10; private static final int keySize = 128; private static final String cypherInstance = "AES/CBC/PKCS5Padding"; private static final String secretKeyInstance = "PBKDF2WithHmacSHA1"; private static final String plainText = "sampleText"; private static final String AESSalt = "ex...
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Replacing blank values (white space) with NaN in pandas

...^\s*$' should be the expression to use. without ^ and $ it will match any string with two consecutive blanks. Also changed + to * to include the empty string "" in the list of things to convert to NaN – Master Yogurt Nov 18 '16 at 17:36 ...