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How to swap two variables in JavaScript
...oInt32 internal method—see Section 11.10 of the ECMAScript standard). It does not produce the correct results for non-integer numerical values. It also converts non-numeric values to 32-bit integers. If you start with a = "hi" and b = "there", you end up with a == 0 and b == 0.
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Angular - ui-router get previous state
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ui-router doesn't track the previous state once it transitions, but the event $stateChangeSuccess is broadcast on the $rootScope when the state changes.
You should be able to catch the prior state from that event (from is the state yo...
Detect backspace in empty UITextField
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Problem is that this doesn't work for secure test fields. Any ideas how to handle that?
– Kyle Clegg
Jul 30 '13 at 23:24
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How to reshape data from long to wide format
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The new (in 2014) tidyr package also does this simply, with gather()/spread() being the terms for melt/cast.
Edit: Now, in 2019, tidyr v 1.0 has launched and set spread and gather on a deprecation path, preferring instead pivot_wider and pivot_longer, which you ...
Use Font Awesome Icon in Placeholder
... characters for all non unicode symbols. For me inserting a unicode entity does not work, but pasting in the symbol works: placeholder=" Hello"
– DanielKhan
Nov 11 '13 at 14:38
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How can I use a local image as the base image with a dockerfile?
...er will try to pull it from the registry.
In other words, if a Dockerfile does FROM ubuntu, but you have a local image called ubuntu different from the official one, your image will override it.
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How can I format a decimal to always show 2 decimal places?
....quantize(TWOPLACES)
Decimal('3.21')
>>> # Validate that a number does not exceed two places
>>> Decimal('3.21').quantize(TWOPLACES, context=Context(traps=[Inexact]))
Decimal('3.21')
>>> Decimal('3.214').quantize(TWOPLACES, context=Context(traps=[Inexact]))
Traceback (most...
+ operator for array in PHP?
What does + mean for array in PHP?
8 Answers
8
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How to increase font size in a plot in R?
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why cex=1.5 does not work? But have to specify for each part in terms of cex.lab, cex.axis, cex.main? What is cex=1.5 for?
– Tim
Nov 22 '10 at 2:49
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Why should we include ttf, eot, woff, svg,… in a font-face
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iOS 5 does support WOFF.
– Rob
Jun 12 '12 at 19:52
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