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“Collection was mutated while being enumerated” on executeFetchRequest
...nator:[self.managedObjectContext persistentStoreCoordinator]];
...in the _importData method (just before to register the controller as observer for the notification) solves the problem.
Thanks for your help, Peter. And thanks to Fred McCann's for its valuable blog post !
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How to override a JavaScript function
...or preferably extend it's implementation like this
parseFloat = (function(_super) {
return function() {
// Extend it to log the value for example that is passed
console.log(arguments[0]);
// Or override it by always subtracting 1 for example
arguments[0] = argume...
UILabel Align Text to center
... code: // Deprecated: use NSTextAlignment enum in UIKit/NSText.h typedef NS_ENUM(NSInteger, UITextAlignment) { UITextAlignmentLeft = 0, UITextAlignmentCenter, UITextAlignmentRight, // could add justified in future } NS_DEPRECATED_IOS(2_0,6_0);
– a...
Getting a Custom Objects properties by string var [duplicate]
...something to work for nested objects and you can use lodash something like _.map([object], _.property(propertyPath))[0]; would work.
– bobwah
Mar 23 '17 at 10:24
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How to check for file existence [duplicate]
Is there a Ruby class/method where I could pass "a full path", home/me/a_file.txt , to identify whether it is a valid file path?
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Moving uncommitted changes to a new branch [duplicate]
...t-so-smart idea would be to create the new branch using git checkout -b new_branch and then merging the changes in the existing branch using git merge
– markroxor
Jan 11 '19 at 5:10
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Open URL in new window with JavaScript
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Use window.open():
<a onclick="window.open(document.URL, '_blank', 'location=yes,height=570,width=520,scrollbars=yes,status=yes');">
Share Page
</a>
This will create a link titled Share Page which opens the current url in a new window with a height of 570 and width of 5...
Detecting Windows or Linux? [duplicate]
...che commons lang has a class SystemUtils.java
you can use :
SystemUtils.IS_OS_LINUX
SystemUtils.IS_OS_WINDOWS
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How to create a circular ImageView in Android? [duplicate]
...e) drawable).getBitmap();
Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);
int w = getWidth();
@SuppressWarnings("unused")
int h = getHeight();
Bitmap roundBitmap = getCroppedBitmap(bitmap, w);
canvas.drawBitmap(roundBitmap, 0, 0, null);
}...
浮点数在内存中的表示 - C/C++ - 清泛网 - 专注IT技能提升
浮点数在内存中的表示Float_Memory_Representation浮点数 内存 补码 阶码 尾数一般我们常见的字符型、整型在内存中采用标准的二进制存储，但是程序员往往容易忽略浮点数在内存中的储存方式，从而会导致一些误用，最常见的是浮...