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Best way to alphanumeric check in JavaScript
...ng and $ means end of string, and [0-9a-z]+ means one or more of character from 0 to 9 OR from a to z.
More information on Javascript regexen here:
https://developer.mozilla.org/en/JavaScript/Guide/Regular_Expressions
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How do I detect if software keyboard is visible on Android Device or not?
...owse_thread/thread/1728f26f2334c060/5e4910f0d9eb898a where Dianne Hackborn from the Android team has replied. However, you can detect it indirectly by checking if the window size changed in #onMeasure. See How to check visibility of software keyboard in Android?.
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What's the most efficient way to test two integer ranges for overlap?
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Great answer from Simon, but for me it was easier to think about reverse case.
When do 2 ranges not overlap? They don't overlap when one of them starts after the other one ends:
dont_overlap = x2 < y1 || x1 > y2
Now it easy to e...
Evaluate expression given as a string
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Alternatively, you can use evals from my pander package to capture output and all warnings, errors and other messages along with the raw results:
> pander::evals("5+5")
[[1]]
$src
[1] "5 + 5"
$result
[1] 10
$output
[1] "[1] 10"
$type
[1] "numeric"
$m...
Grepping a huge file (80GB) any way to speed it up?
... --pipe --block 10M grep -i -C 5 'db_pd.Clients'
It's not entirely clear from you question, but other options for grep include:
Dropping the -i flag.
Using the -F flag for a fixed string
Disabling NLS with LANG=C
Setting a max number of matches with the -m flag.
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Namespace and class with the same name?
... is ambiguous? You directly say to compiler that you want to use class Foo from the namespace Foo in this specific case. No?
– GuardianX
Jun 29 '16 at 22:23
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HTML5 canvas ctx.fillText won't do line breaks?
... the canvas API is that it separates the lower-level drawing functionality from what you can already do (perform the necessary measurements). Also, you can know the text height simply by providing the text size in pixels; in other words: context.font = "16px Arial"; - you have the height there; the ...
How to check if a string contains only digits in Java [duplicate]
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You can also use NumberUtil.isNumber(String str) from Apache Commons
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Compile Views in ASP.NET MVC
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From the readme word doc for RC1 (not indexed by google)
ASP.NET Compiler Post-Build Step
Currently, errors within a view file are not detected until run time. To let you detect these errors at compile time, ASP.NET MVC pro...
Specifying a custom DateTime format when serializing with Json.Net
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@Koen Zomers - The single quotes you removed from my date formats technically ARE correct, although they are not strictly necessary here. See Literal String Delimiters in the documentation for Custom Date and Time Format Strings. However, the format I quoted as the de...