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How do I show/hide a UIBarButtonItem?
...ted:YES];
// This is how you add the button to the toolbar and animate it
if (![toolbarButtons containsObject:self.myButton]) {
// The following line adds the object to the end of the array.
// If you want to add the button somewhere else, use the `insertObject:atIndex:`
// method in...
How to return a result from a VBA function
...
test = 1
End Function
Example usage:
Dim i As Integer
i = test()
If the function returns an Object type, then you must use the Set keyword like this:
Public Function testRange() As Range
Set testRange = Range("A1")
End Function
Example usage:
Dim r As Range
Set r = testRange()
No...
Limiting number of displayed results when using ngRepeat
...on step 5 and I thought as an experiment I’d try to allow users to specify how many they’d like to be shown. The view looks like this:
...
Checking for a null int value from a Java ResultSet
...r your iVal declaration. In which case your test is completely redundant.
If you actually want to do something different if the field value is NULL, I suggest:
int iVal = 0;
ResultSet rs = magicallyAppearingStmt.executeQuery(query);
if (rs.next()) {
iVal = rs.getInt("ID_PARENT");
if (rs.wa...
How do I lowercase a string in C?
...ype.h>
for(int i = 0; str[i]; i++){
str[i] = tolower(str[i]);
}
or if you prefer one liners, then you can use this one by J.F. Sebastian:
for ( ; *p; ++p) *p = tolower(*p);
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How do I return early from a rake task?
I have a rake task where I do some checks at the beginning, if one of the checks fails I would like to return early from the rake task, I don't want to execute any of the remaining code.
...
Usage of protocols as array types and function parameters in swift
...otocol. The objects should be stored in a typed array. According to the Swift documentation protocols can be used as types:
...
Check for array not empty: any?
Is it bad to check if an array is not empty by using any? method?
6 Answers
6
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StringUtils.isBlank() vs String.isEmpty()
...haracter (or that the string is empty or that it's null). This is totally different than just checking if the string is empty.
From the linked documentation:
Checks if a String is whitespace, empty ("") or null.
StringUtils.isBlank(null) = true
StringUtils.isBlank("") = true
...
Remove a HTML tag but keep the innerHtml
...airly slow compared to .replacewith() because of the extra DOM traversal...if it's a <b> tag with only HTML it gets even faster.
– Nick Craver♦
Nov 20 '10 at 13:51
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