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C: What is the difference between ++i and i++?
...nce.
For a for loop, use ++i, as it's slightly faster. i++ will create an extra copy that just gets thrown away.
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SqlDataAdapter vs SqlDataReader
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Actually, with a little bit of extra code you certainly can run linq queries (or, at least one query) on a datareader. Just use an iterator block to yield return the DataReader cast as an IDataRecord inside your while (reader.Read()) loop.
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How to check if a string is a valid hex color representation?
...// regular function
function isHexColor (hex) {
return typeof hex === 'string'
&& hex.length === 6
&& !isNaN(Number('0x' + hex))
}
// or as arrow function (ES6+)
isHexColor = hex => typeof hex === 'string' && hex.length === 6 && !isNaN(Number...
Order Bars in ggplot2 bar graph
...f the factor in the order you want. An ordered factor is not required; the extra information in an ordered factor isn't necessary and if these data are being used in any statistical model, the wrong parametrisation might result — polynomial contrasts aren't right for nominal data such as this.
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How to size an Android view based on its parent's dimensions
...not work for this scenario, but @M.Schenk's comment does. It also saves an extra layout pass. You should also post it as an answer for visibility.
– dokkaebi
Jan 10 '13 at 16:32
7
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What is the second parameter of NSLocalizedString()?
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The comment string is ignored by the application. It is used for a translator's benefit, to add meaning to the contextual usage of the key where it is found in your application.
For example, the Hello_World_Key key may take different v...
How to create json by JavaScript for loop?
...l's code but swap out status.options[i].text for status.id.
If you want a string that contains a JSON representation of the selected object, use this instead:
var jsonStr = "";
var status = document.getElementsByName("status")[0];
for (i = 0, i < status.options.length, ++i) {
if (opt...
Spring Data JPA find by embedded object property
...gion() did not work for me. The following works with the latest release of String Data JPA:
Page<QueuedBook> findByBookId_Region(Region region, Pageable pageable);
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Bundle ID Suffix? What is it?
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The reason for this is explained in the Developer Portal:
The App ID string contains two parts separated by a period (.) — an App ID Prefix (your Team ID by default, e.g. ABCDE12345), and an App ID Suffix (a Bundle ID search string, e.g. com.mycompany.appname). [emphasis added]
So in this ...
RegEx to exclude a specific string constant [duplicate]
Can regular expression be utilized to match any string except a specific string constant let us say "ABC" ? Is this possible to exclude just one specific string constant? Thanks your help in advance.
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