leading-zero

Strange behavior in C when calculating sum of digits with leading zeroes

老子叫甜甜 提交于 2019-11-27 08:24:27
问题 I just wanted to write a minimalistic program in C to calculate the sum of digits of some natural number (the sum of digits is defined as follows: sumOfDigits(123) = 6, sumOfDigits(0) = 0, sumOfDigits(32013) = 9, and so on). So far, everything is ok with the following code snippet. For example, for 5100 it delivers 6, correctly. But, why is 14 delivered for 05100 (remember the leading 0)? What's going on here? I had a look at the binary representation of the numbers, but that didn't give any

How to remove leading and trailing zeros in a string? Python

吃可爱长大的小学妹 提交于 2019-11-27 03:47:53
I have several alphanumeric strings like these listOfNum = ['000231512-n','1209123100000-n00000','alphanumeric0000', '000alphanumeric'] The desired output for removing trailing zeros would be: listOfNum = ['000231512-n','1209123100000-n','alphanumeric', '000alphanumeric'] The desired output for leading trailing zeros would be: listOfNum = ['231512-n','1209123100000-n00000','alphanumeric0000', 'alphanumeric'] The desire output for removing both leading and trailing zeros would be: listOfNum = ['231512-n','1209123100000-n00000','alphanumeric0000', 'alphanumeric'] For now i've been doing it the

How to concatenate strings with padding in sqlite

限于喜欢 提交于 2019-11-27 02:53:15
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 Column1-Column2-Column3 (e.g. A-01-0001 ). I want to pad each column with a - I am a beginner with regards to SQLite, any help would be appreciated tofutim The || operator is "concatenate" - it joins together the two strings of its operands. From http://www.sqlite.org/lang_expr.html For padding, the seemingly-cheater way I've used is to start with your target string, say '0000', concatenate '0000423', then substr(result, -4, 4) for '0423'. Update: Looks like there is no native

Input field value - remove leading zeros

女生的网名这么多〃 提交于 2019-11-26 19:00:32
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' . More simplified solution is as below. Check this out! var resultString = document.getElementById("theTextBoxInQuestion") .value .replace(/^[0]+/g,""); str.replace(/^0+(?!\.|$)/, '') '0000.00' --> '0.00' '0.00' --> '0.00' '00123.0' --> '123.0' '0' --> '0' var value= document.getElementById("theTextBoxInQuestion").value; var number= parseFloat(value).toFixed(2); It sounds like you just want to remove leading zeros unless there's only one left

Javascript 0 in beginning of number

房东的猫 提交于 2019-11-26 12:19:40
问题 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 one 02.5 == 2.5 // same error here Can anyone explain, how it works, why in first example it works, and ignores leading zeros, but in second example it gives me a SyntaxError Thank you 回答1: Leading 0 on a numerical literal indicates that an octal

Input field value - remove leading zeros

你离开我真会死。 提交于 2019-11-26 12:16:18
问题 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\' . 回答1: More simplified solution is as below. Check this out! var resultString = document.getElementById("theTextBoxInQuestion") .value .replace(/^[0]+/g,""); 回答2: str.replace(/^0+(?!\.|$)/, '') '0000.00' --> '0.00' '0.00' --> '0.00' '00123.0' --> '123.0' '0' --> '0' 回答3: var value= document.getElementById("theTextBoxInQuestion").value;

How to concatenate strings with padding in sqlite

对着背影说爱祢 提交于 2019-11-26 08:01:31
问题 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 Column1-Column2-Column3 (e.g. A-01-0001 ). I want to pad each column with a - I am a beginner with regards to SQLite, any help would be appreciated 回答1: The || operator is "concatenate" - it joins together the two strings of its operands. From http://www.sqlite.org/lang_expr.html For padding, the seemingly-cheater way I've used is to start with your target string, say '0000',

Javascript add leading zeroes to date

纵然是瞬间 提交于 2019-11-25 22:06:25
问题 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() + \'/\' + (MyDate.getMonth()+1) + \'/\' + MyDate.getFullYear(); I need to have the date appear with leading zeroes on the day and month component by way of adding these rules to the script. I can\'t seem to get it to work. if (MyDate.getMonth < 10)getMonth = \'0\' +