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What does the ^ operator do in Java?

...y for this task. Horner's scheme Addressing your specific need, you actually don't need to compute various powers of 10. You can use what is called the Horner's scheme, which is not only simple but also efficient. Since you're doing this as a personal exercise, I won't give the Java code, but he...
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Select elements by attribute

... @rinogo: actually all you need is if($(":checkbox[myattr]").length) . The () after length is not necessary, neither is the > 0, 0 evaluates to false in equality tests that do not require strict equality (both value and type). ...
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How can I pad a value with leading zeros?

... If performance is a concern for you, don't use this solution! Potentially outdated: ECMAScript 2017 includes String.prototype.padStart and Number.prototype.toLocaleString is there since ECMAScript 3.1. Example: var n=-0.1; n.toLocaleString('en', {minimumIntegerDigits:4,minimumFractionDigits:2...
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Predicate in Java

...or any string that matches its given regular expression. This is essentially an OOP abstraction for a boolean test. For example, you may have a helper method like this: static boolean isEven(int num) { return (num % 2) == 0; // simple } Now, given a List<Integer>, you can process onl...
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How can I use grep to find a word inside a folder?

..., a directory is a kind of file (there is a term "regular file" to specifically refer to entities that are called just "files" in Windows). grep -nr string reads the content to search from the standard input, that is why it just waits there for input from you, and stops doing so when you press ^C (...
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How can I declare and use Boolean variables in a shell script?

...... if [ "$the_world_is_flat" = true ] ; then echo 'Be careful not to fall off!' fi Original Answer Caveats: https://stackoverflow.com/a/21210966/89391 the_world_is_flat=true # ...do something interesting... if $the_world_is_flat ; then echo 'Be careful not to fall off!' fi From: Usi...
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How to find/identify large commits in git history?

...MB, and the total size of the rest of the git repo is 298 MB. This is basically a code-only repo that should not be more than a few MB. ...
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Delete last char of string

...ve(strgroupids.Length - 1); MSDN: String.Remove(Int32): Deletes all the characters from this string beginning at a specified position and continuing through the last position share | i...
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How to create custom easing function with Core Animation?

... function easier using two new timing objects. 1) UICubicTimingParameters allows to define cubic Bézier curve as an easing function. let cubicTimingParameters = UICubicTimingParameters(controlPoint1: CGPoint(x: 0.25, y: 0.1), controlPoint2: CGPoint(x: 0.25, y: 1)) let animator = UIViewPropertyAni...
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Can I make a function available in every controller in angular?

If I have a utility function foo that I want to be able to call from anywhere inside of my ng-app declaration. Is there someway I can make it globally accessible in my module setup or do I need to add it to the scope in every controller? ...