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Can someone explain the “debounce” function in Javascript
...ed, and the
`debounce` method was executed.
This means that for all subsequent events within the `wait`
period, the `timeout` variable holds a truthy value, and the
result of the expression that gets assigned to the `callNow`
variable is ...
SQLAlchemy: What's the difference between flush() and commit()?
...en/13/orm/session_state_management.html#session-referencing-behavior
This means if you don't have an object explicitly held onto somewhere, like in a list or dict, sqlalchemy won't keep it in memory.
However, then you have the database side of things to worry about. Presumably flushing without com...
Design patterns or best practices for shell scripts [closed]
...all. Functions are like scripts, they can only return numeric values. This means that you have to invent a different strategy to return string values. My strategy is to use a variable called RESULT to store the result, and returning 0 if the function completed cleanly.
Also, you can raise exception...
Getting attribute using XPath
...ook title), for
the first element?
Use:
/*/book[1]/title/@lang
This means:
Select the lang attribute of the title element that is a child of the first book child of the top element of the XML document.
To get just the string value of this attribute use the standard XPath function string():
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How to fetch the row count for all tables in a SQL SERVER database [duplicate]
...nt to mention that sp_MSForEachTable is an undocumented proc - afaik, this means that MS does not support it and may remove it from future versions without notice?
– MarkD
Jun 26 '14 at 8:04
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Select2 dropdown but allow new values by user?
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How can i set the data from external source? I mean what if i want to load cities of a selected country and selected country itself is a dropodown?
– Ali Baig
Oct 1 '15 at 12:04
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Uses for Optional
...
The main point of Optional is to provide a means for a function returning a value to indicate the absence of a return value. See this discussion. This allows the caller to continue a chain of fluent method calls.
This most closely matches use case #1 in the OP's ques...
T-SQL: Deleting all duplicate rows but keeping one [duplicate]
...etain. As written, it will retain the "first" duplicate row, where "first" means "lowest ordering according to baz". Of course, if ever you're unsure of what will be deleted/retained, turn the delete into a select and make sure. Better safe than sorry.
– Ben Thul
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adb shell command to make Android package uninstall dialog appear
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-d means data. -a means action. You are launching an Intent with action as "Delete", and data as "package:your app package". This will start the activity in charge of uninstalling packages and try to uninstall the package provid...
Multiline TextView in Android?
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@SagarDevanga What does it mean to set text dynamically?
– juil
May 25 '16 at 5:56
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