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Keep only first n characters in a string?

Is there a way in JavaScript to remove the end of a string? 7 Answers 7 ...
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Why can't decimal numbers be represented exactly in binary?

...1/3, 1/9, 1/27, or any rational in decimal notation. We do it by adding an extra symbol. For example, a line over the digits that repeat in the decimal expansion of the number. What we need to represent decimal numbers as a sequence of binary numbers are 1) a sequence of binary numbers, 2) a radix p...
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Formatting a float to 2 decimal places

... You can pass the format in to the ToString method, e.g.: myFloatVariable.ToString("0.00"); //2dp Number myFloatVariable.ToString("n2"); // 2dp Number myFloatVariable.ToString("c2"); // 2dp currency Standard Number Format Strings ...
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PHP MySQL Google Chart JSON - Complete Example

...s($r); } for($i=0;$i<count($arr1);$i++) { $chart_array[$i]=array((string)$arr2[$i],intval($arr1[$i])); } echo "<pre>"; $data=json_encode($chart_array); ?> <html> <head> <!--Load the AJAX API--> <script type="text/javascript" src="https://www.google.c...
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Best way to test if a generic type is a string? (C#)

...ith this is using default(T) . When you call default on a value type or a string, it initializes it to a reasonable value (such as empty string). When you call default(T) on an object, it returns null. For various reasons we need to ensure that if it is not a primitive type, then we will have a d...
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MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术

...在.cpp文件的OnInitDialog()之类的函数里实现如下代码: CString strname[3]; strname[0]="Screen Name"; strname[1]="Form ID"; strname[2]="Category Path"; for(int i=0;i<3;i++) { m_List.InsertColumn(i,strname[i],LVCFMT_LEFT,130); } 在这之前也要将List Control的ID与Cl...
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MFC AfxMessageBox改变标题的几种方法 - C/C++ - 清泛网 - 专注C/C++及内核技术

...不改变工程名的基础上改变标题呢?其实这个标题在资源String Table里就能找到,查找AFX_IDS_APP_TITLE,在这里你就能轻而易举的改变标题了。 注意:如果工程的资源String Table里面没有添加AFX_IDS_APP_TITLE,需要手动添加。 2、修...
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Remove characters from NSString?

I want to remove the spaces, so the new string would be "ABCDEFG". 6 Answers 6 ...
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Removing fields from struct or hiding them in JSON Response

...ing would want, but it's not the answer to the question. I'd use a map[string]interface{} instead of a struct in this case. You can easily remove fields by calling the delete built-in on the map for the fields to remove. That is, if you can't query only for the requested fields in the first pla...
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jQuery removing '-' character from string

I have a string "-123445". Is it possible to remove the '-' character from the string? 3 Answers ...