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Rails create or update magic?
...ils - you have to separate it into two Ruby statements, one for the object selection and one for the attribute update.
– sameers
Sep 23 '14 at 5:08
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Does Swift have documentation generation support?
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New in Xcode 8, you can select a method like this
func foo(bar: Int) -> String { ... }
Then press command + option + / or choose "Structure" - "Add documentation" from Xcode's "Editor" menu, and it will generate the following comments template...
“tag already exists in the remote" error after recreating the git tag
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In Mac SourceTree only deselect the Push all tags checkbox:
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Handle ModelState Validation in ASP.NET Web API
... {
var errors = context.ModelState.Values.SelectMany(x => x.Errors.Select(p => new ErrorModel()
{
ErrorCode = ((int)HttpStatusCode.BadRequest).ToString(CultureInfo.CurrentCulture),
ErrorMessage =...
How to limit the amount of concurrent async I/O operations?
...syncThreadCount);
IEnumerable<Task> tasks = inputEnumerable.Select(async input =>
{
await throttler.WaitAsync().ConfigureAwait(false);
try
{
await asyncProcessor(input).ConfigureAwait(false);
}
fina...
How to exclude a file extension from IntelliJ IDEA search?
...r that:
Goto File >> Project Structure (or just press Command+;)
Select Modules under Project Settings
Add a pattern or file names to the Exclude files text-box, in this case: *.lock;package-lock.json and hit Apply, and then ok.
Note The above option is available in IntelliJ 2019 an...
App Inventor 2 串口通信教程 - USB串口与蓝牙串口 · App Inventor 2 中文网
...选择器1.AfterPicking() {
if 蓝牙客户端1.Connect(列表选择器1.Selection) {
标签_状态.Text = "已连接：" + 列表选择器1.Selection
} else {
标签_状态.Text = "连接失败！"
}
}
断开连接积木
when 按钮_断开.Click() {
蓝牙...
Factory Pattern. When to use factory methods?
...or further application development, then factory method is one of the best selections for creation pattern. Reason behind; We know that when to create an object of required functionality(s) but type of object will remain undecided or it will be decided ob dynamic parameters being passed.
Now the po...
SQLite Concurrent Access
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If most of those concurrent accesses are reads (e.g. SELECT), SQLite can handle them very well. But if you start writing concurrently, lock contention could become an issue. A lot would then depend on how fast your filesystem is, since the SQLite engine itself is extremely fast...
How to make/get a multi size .ico file? [closed]
...ultiple icon ico file for free.
Drag & drop the different icon sizes, select them all and choose file -> create multiple icon.
You can download if from http://www.towofu.net/soft/e-aicon.php
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