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Swift - How to convert String to Double
...ue cannot be converted (i.e.: bad user input).
let lessPrecisePI = Float("3.14")
let morePrecisePI = Double("3.1415926536")
let invalidNumber = Float("alphabet") // nil, not a valid number
Unwrap the values to use them using if/let
if let cost = Double(textField.text!) {
print("The user en...
How to mark-up phone numbers?
... in early 2000 with RFC 2806 (which was obsoleted by the more-thorough RFC 3966 in 2004) and continues to be improved. Supporting tel: on the iPhone was not an arbitrary decision.
callto:, while supported by Skype, is not a standard and should be avoided unless specifically targeting Skype users.
...
Resource interpreted as Document but transferred with MIME type application/zip
... |
edited Dec 15 '14 at 4:36
answered Jul 3 '13 at 15:40
Ro...
How can I extract audio from video with ffmpeg?
...|
edited Mar 29 '19 at 17:34
llogan
71.6k2020 gold badges140140 silver badges167167 bronze badges
answer...
How to use the same C++ code for Android and iOS?
...d step is to add the CMakeLists.txt file:
cmake_minimum_required(VERSION 3.4.1)
include_directories (
../../CPP/
)
add_library(
native-lib
SHARED
src/main/cpp/native-lib.cpp
../../CPP/Core.h
../../CPP/Core.cpp
)
find_library(
log-lib
log
)
target_link_libraries(...
How do I create directory if it doesn't exist to create a file?
... BKSpurgeon
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answered Jun 2 '10 at 6:19
DonDon
8,45344 gold badges2323 si...
Dynamically update values of a chartjs chart
... a line chart: http://jsbin.com/yitep/4/edit
Original Post
As of Nov 2013, there seem to be very few options for updating charts.
There is a good example here (duplicated below) of adding new points to a line chart. Still kind of jumpy but not too bad. However, I think the effect probably de...
Save string to the NSUserDefaults?
...
tmanthey
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answered Jun 19 '10 at 5:37
drawnonwarddrawnonw...
postgresql - add boolean column to table set default
...
answered Aug 13 '12 at 16:54
EelkeEelke
16.8k33 gold badges3939 silver badges6363 bronze badges
...
How do I specify the exit code of a console application in .NET?
...
613
3 options:
You can return it from Main if you declare your Main method to return int.
You can ...