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Provide an image for WhatsApp link sharing
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392
2020 standards
It takes a few steps to get the perfect preview for WhatsApp, Twitter, Facebook a...
How to properly compare two Integers in Java?
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312
No, == between Integer, Long etc will check for reference equality - i.e.
Integer x = ...;
Inte...
Difference between framework and static library in xcode4, and how to call them
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2 Answers
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Active
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Count number of occurrences of a pattern in a file (even on same line)
...is 1. Actually -o is ignored here and you could just use grep -c instead.
2.
$ echo afoobarfoobar | grep -o foo
foo
foo
$ echo afoobarfoobar | grep -o foo | wc -l
2
Two matches are found in the line (a{foo}bar{foo}bar) because we explicitly asked to find every occurrence (-o). Every occurence i...
How to sort a HashSet?
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edited Feb 27 '19 at 0:43
MC Emperor
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Using Node.JS, how do I read a JSON file into (server) memory?
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1248
Sync:
var fs = require('fs');
var obj = JSON.parse(fs.readFileSync('file', 'utf8'));
Async:...
Is [CallerMemberName] slow compared to alternatives when implementing INotifyPropertyChanged?
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202
No, the use of [CallerMemberName] is not slower than the upper basic implementation.
This is ...
What Are Some Good .NET Profilers?
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285
votes
I have used JetBrains dotTrace and Redgate ANTS extensively. They are fairl...
RESTful Alternatives to DELETE Request Body
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shelleyshelley
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How to drop multiple columns in postgresql
I want to drop 200 columns in my table in PostgreSQL. I tried:
2 Answers
2
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