大约有 23,000 项符合查询结果(耗时:0.0428秒) [XML]

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Array to String PHP?

What is the best method for converting a PHP array into a string? I have the variable $type which is an array of types. ...
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In where shall I use isset() and !empty()

I read somewhere that the isset() function treats an empty string as TRUE , therefore isset() is not an effective way to validate text inputs and text boxes from a HTML form. ...
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How do I pass command-line arguments to a WinForms application?

... static void Main(string[] args) { // For the sake of this example, we're just printing the arguments to the console. for (int i = 0; i < args.Length; i++) { Console.WriteLine("args[{0}] == {1}", i, args[i]); } } The arguments w...
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Convert JSON string to dict using Python

...al: The difference is that .load() parses a file object; .loads() parses a string / unicode object. – fyngyrz Sep 19 '16 at 17:07 2 ...
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Retrieve column names from java.sql.ResultSet

With java.sql.ResultSet is there a way to get a column's name as a String by using the column's index? I had a look through the API doc but I can't find anything. ...
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Why does Date.parse give incorrect results?

...t, the Date.parse method was completely implementation dependent (new Date(string) is equivalent to Date.parse(string) except the latter returns a number rather than a Date). In the 5th edition spec the requirement was added to support a simplified (and slightly incorrect) ISO-8601 (also see What ar...
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C# Iterating through an enum? (Indexing a System.Array)

...(typeof(myEnum)); foreach( MyEnum val in values ) { Console.WriteLine (String.Format("{0}: {1}", Enum.GetName(typeof(MyEnum), val), val)); } Or, you can cast the System.Array that is returned: string[] names = Enum.GetNames(typeof(MyEnum)); MyEnum[] values = (MyEnum[])Enum.GetValues(typeof(My...
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Conveniently map between enum and int / String

... int yourEnum.ordinal() int → enum EnumType.values()[someInt] String → enum EnumType.valueOf(yourString) enum → String yourEnum.name() A side-note:As you correctly point out, the ordinal() may be "unstable" from version to version. This is the exact reason why I always stor...
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How do I get a string format of the current date time, in python?

For example, on July 5, 2010, I would like to calculate the string 4 Answers 4 ...
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Does JavaScript have a method like “range()” to generate a range within the supplied bounds?

...bers [...Array(5).keys()]; => [0, 1, 2, 3, 4] Character iteration String.fromCharCode(...[...Array('D'.charCodeAt(0) - 'A'.charCodeAt(0) + 1).keys()].map(i => i + 'A'.charCodeAt(0))); => "ABCD" Iteration for (const x of Array(5).keys()) { console.log(x, String.fromCharCode('A'.c...