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Ruby combining an array into one string
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what if you were joining digits? [1,2,3] => 123?
– stevenspiel
Dec 9 '13 at 19:08
3
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How to change the type of a field?
...now how you'd convert a string (think currency like '1.23') to the integer 123? I assume you'd have to parse it as a float or decimal, multiply it by 100, then save it as an integer, but I can't find the right docs to do this. Thanks!
– Brian Armstrong
Feb 23...
mfc里面的140种颜色宏 - C/C++ - 清泛网 - 专注C/C++及内核技术
...47, 112, 219) // 中紫色
#define CLR_MEDIUMSLATEBLUE RGB(123, 104, 238) // 中板岩蓝
#define CLR_SLATEBLUE RGB(106, 90, 205) // 板岩蓝
#define CLR_DARKSLATEBLUE RGB( 72, 61, 139) // 暗板岩蓝
#define CLR_LAVENDER ...
iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...取电话号码，去掉数字之间的-
NSString *originalString = @"(123)123123abc";
NSMutableString *strippedString = [NSMutableString stringWithCapacity:originalString.length];
NSScanner *scanner = [NSScanner scannerWithString:originalString];
NSCharacterSet *numbers = [NSCharacterSet char...
How to convert a byte array to a hex string in Java?
...is the function I currently use:
private static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
public static String bytesToHex(byte[] bytes) {
char[] hexChars = new char[bytes.length * 2];
for (int j = 0; j < bytes.length; j++) {
int v = bytes[j] & 0xFF;
he...
Ruby on Rails vs ASP.NET MVC 3 for a .NET Guy? [closed]
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Craig StuntzCraig Stuntz
123k1212 gold badges244244 silver badges266266 bronze badges
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The model used to open the store is incompatible with the one used to create the store
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@Computer_whiz123, in XCode 5.1.1 it is called 'Model Version'
– Stas
Sep 3 '14 at 15:35
1
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How can I find the number of arguments of a Python function?
... get defaults=(None,) you get defaults=None.
– Seanny123
Jul 4 '18 at 16:42
si there a way to get the original paramet...
filter for complete cases in data.frame using dplyr (case-wise deletion)
... passing it to the filter.
Another benchmark with more columns:
set.seed(123)
x <- sample(1e5,1e5*26, replace = TRUE)
x[sample(seq_along(x), 1e3)] <- NA
df <- as.data.frame(matrix(x, ncol = 26))
library(microbenchmark)
microbenchmark(
na.omit = {df %>% na.omit},
filter.anonymous = ...
Decimal separator comma (',') with numberDecimal inputType in EditText
...se an EditText with android:inputType="numberDecimal" and android:digits="0123456789.,".
Then add a TextChangedListener to the EditText with the following afterTextChanged:
public void afterTextChanged(Editable s) {
double doubleValue = 0;
if (s != null) {
try {
double...