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How to turn NaN from parseInt into 0 for an empty string?

Is it possible somehow to return 0 instead of NaN when parsing values in JavaScript? 18 Answers ...
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Getting the array length of a 2D array in Java

... }; System.out.println(foo.length); //2 System.out.println(foo[0].length); //3 System.out.println(foo[1].length); //4 } Column lengths differ per row. If you're backing some data by a fixed size 2D array, then provide getters to the fixed values in a wrapper class. ...
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How can I repeat a character in Bash?

... 410 You can use: printf '=%.0s' {1..100} How this works: Bash expands {1..100} so the command be...
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How to make good reproducible pandas examples

...nd below your code with your code unindented: In [2]: df Out[2]: A B 0 1 2 1 1 3 2 4 6 test pd.read_clipboard(sep='\s\s+') yourself. * I really do mean small, the vast majority of example DataFrames could be fewer than 6 rowscitation needed, and I bet I can do it in 5 rows. Can you re...
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Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') [duplicate]

... 208 +500 First, ...
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C++常用排序算法汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术

...小到大 */ void Select_Sort1(int *arr,int len) { int i,j; for(i=0;i<len;i++) for(j=i+1;j<len;j++) if(arr[i] > arr[j]) { int exchange = arr[i]; arr[i] = arr[j]; arr[j] = exchange; } } /* 第二种形式的选择排序,减少了元素互换的操作 选...
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How can I confirm a database is Oracle & what version it is using SQL?

... 10 Answers 10 Active ...
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Add a common Legend for combined ggplots

... 108 Update 2015-Feb See Steven's answer below df1 &lt;- read.table(text="group x y gro...
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Easy pretty printing of floats in python?

... 102 As noone has added it, it should be noted that going forward from Python 2.6+ the recommended w...
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How to plot two histograms together in R?

...gle numeric column which lists the length of all measured carrots (total: 100k carrots) and cucumbers (total: 50k cucumbers). ...