Questions tagged [leading-zero]
276 questions
610
votes
33 answers
Javascript add leading zeroes to date
I've created this script to calculate the date for 10 days in advance in the format of dd/mm/yyyy:
var MyDate = new Date();
var MyDateString = new Date();
MyDate.setDate(MyDate.getDate()+10);
MyDateString = MyDate.getDate() + '/' +…
Julian Coates
- 6,129
- 3
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240
votes
3 answers
How to concatenate strings with padding in sqlite
I have three columns in an sqlite table:
Column1 Column2 Column3
A 1 1
A 1 2
A 12 2
C 13 2
B 11 2
I need to select…
Akshara
- 3,361
- 9
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173
votes
7 answers
How to remove leading and trailing zeros in a string? Python
I have several alphanumeric strings like these
listOfNum = ['000231512-n','1209123100000-n00000','alphanumeric0000', '000alphanumeric']
The desired output for removing trailing zeros would be:
listOfNum =…
alvas
- 115,346
- 109
- 446
- 738
118
votes
3 answers
Why does Python 3 allow "00" as a literal for 0 but not allow "01" as a literal for 1?
Why does Python 3 allow "00" as a literal for 0 but not allow "01" as a literal for 1? Is there a good reason? This inconsistency baffles me. (And we're talking about Python 3, which purposely broke backward compatibility in order to achieve goals…
walrus
- 2,945
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49
votes
8 answers
Input field value - remove leading zeros
I have a textbox in Javascript. When I enter '0000.00' in the textbox, I want to know how to convert that to only having one leading zero, such as '0.00'.
raja
34
votes
4 answers
SQLite function to format numbers with leading zeroes?
I’ve got an SQLite database that will need to contain products. Those products have a fixed-format composite product number, consisting of category, group and product number (cccccc.gg.ppp). Every time a new product is inserted, the new product…
Martijn
- 13,225
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24
votes
3 answers
Javascript 0 in beginning of number
I just want to understand js logic with 0-s in beginning of number.
For example
var x = 09.3
// here x == 9.3
// other example
09.3 == 9.3
// returns true
// but check this one
var x = 02.5
// Uncaught SyntaxError: Unexpected number
// or this…
Gor
- 2,808
- 6
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21
votes
3 answers
How to count leading zeros in a 32 bit unsigned integer
Could anyone tell me please what is an efficient algorithm to count the number of leading zeroes in a 32-bit unsigned integer in C programming?
rzmuc
- 243
- 1
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- 10
17
votes
6 answers
Fast way of finding most and least significant bit set in a 64-bit integer
There are a lot of questions about this on StackOverflow. A lot. However I cannot find an answer that:
Works in C#
Works for 64-bit integers (as opposed to 32-bit)
Faster than:
private static int Obvious(ulong v)
{
int r = 0;
while ((v >>=…
Andrew Savinykh
- 25,351
- 17
- 103
- 158
16
votes
4 answers
Get rid of leading zeros for date strings in Python?
Is there a nimble way to get rid of leading zeros for date strings in Python?
In the example below I'd like to get 12/1/2009 in return instead of 12/01/2009. I guess I could use regular expressions. But to me that seems like overkill. Is there a…
c00kiemonster
- 22,241
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16
votes
14 answers
Count leading zeroes in an Int32
How do I count the leading zeroes in an Int32? So what I want to do is write a function which returns 30 if my input is 2, because in binary I have 000...0000000000010.
user1310957
15
votes
4 answers
Most efficient way to remove leading zeros from Swift 3 string
I have a string such as "00123456" that I would like to have in an string "123456", with the leading zeros removed.
I've found several examples for Objective-C but not sure best way to do so with Swift 3.
Thanks
Jazzmine
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15
votes
3 answers
Number to string with leading (left padded) zeros in Julialang
It seems as an easy question, but I cannot find the answer anywhere. If I have an integer variable, how can I transform it to a string with leading zeros?
I want something as the code below:
n = 4
string_size = 3
println(fleading(n, string_size))
#…
silgon
- 6,890
- 7
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12
votes
1 answer
Convert int to string with leading zeros
I have an integer which I want to convert to a string with leading zeros.
So I have 1 and want to turn it into 01. 14 should turn into 14 not 014.
I tried:
let str = (string 1).PadLeft(2, '0') // visual studio suggested this one
let str = (string…
Snæbjørn
- 10,322
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9
votes
5 answers
What directive can I give a stream to print leading zeros on a number in C++?
I know how to cause it to be in hex:
unsigned char myNum = 0xA7;
clog << "Output: " std::hex << int(myNum) << endl;
// Gives:
// Output: A7
Now I want it to always print a leading zero if myNum only requires one digit:
unsigned char myNum =…
WilliamKF
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