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App Inventor 2 复制屏幕功能，界面设计更便捷，避免误删组件 · App Inventor 2 中文网
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App Inventor 2 复制屏幕功能，界面设...
App Inventor 2 实现蓝牙未开启时弹窗提醒用户开启蓝牙 · App Inventor 2 中文网
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App Inventor 2 实现蓝牙未开启时弹窗...
App Inventor 2 MQTT拓展入门（保姆级教程） · App Inventor 2 中文网
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App Inventor 2 MQTT拓展入门（保姆级...
App Inventor 2 ECharts 拓展：基于 ECharts 强大的个性化数据图表展示 · ...
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Best way to merge two maps and sum the values of same key?
...> import Scalaz._
import Scalaz._
scala> val map1 = Map(1 -> 9 , 2 -> 20)
map1: scala.collection.immutable.Map[Int,Int] = Map(1 -> 9, 2 -> 20)
scala> val map2 = Map(1 -> 100, 3 -> 300)
map2: scala.collection.immutable.Map[Int,Int] = Map(1 -> 100, 3 -> 300)
scala&g...
Return first N key:value pairs from dict
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edited Aug 21 '19 at 12:43
ofir_aghai
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Javascript equivalent of Python's zip function
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2016 update:
Here's a snazzier Ecmascript 6 version:
zip= rows=>rows[0].map((_,c)=>rows.map(row=>row[c]))
Illustration equiv. to Python{zip(*args)}:
> zip([['row0col0', 'row0col1', 'row0col2'],
['row1c...
How to calculate a Mod b in Casio fx-991ES calculator
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Now do your calculation (in comp mode), like 50 / 3 and you will see 16 2/3, thus, mod is 2. Or try 54 / 7 which is 7 5/7 (mod is 5).
If you don't see any fraction then the mod is 0 like 50 / 5 = 10 (mod is 0).
The remainder fraction is shown in reduced form, so 60 / 8 will result in 7 1/2. Rema...
combinations between two lists?
...e looking for - see the other answers.
Suppose len(list1) >= len(list2). Then what you appear to want is to take all permutations of length len(list2) from list1 and match them with items from list2. In python:
import itertools
list1=['a','b','c']
list2=[1,2]
[list(zip(x,list2)) for x in ite...