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error: ‘NULL’ was not declared in this scope
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179
NULL is not a keyword. It's an identifier defined in some standard headers. You can include
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Java Regex Capturing Groups
...of quantifier. You're using a greedy quantifier in your first group (index 1 - index 0 represents the whole Pattern), which means it'll match as much as it can (and since it's any character, it'll match as many characters as there are in order to fulfill the condition for the next groups).
In shor...
Convert datetime to Unix timestamp and convert it back in python
I have dt = datetime(2013,9,1,11) , and I would like to get a Unix timestamp of this datetime object.
11 Answers
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How do I find all installed packages that depend on a given package in NPM?
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154
You're looking for https://docs.npmjs.com/cli/ls
For example, to see which packages depend on...
Formatting Phone Numbers in PHP
... SMS app and need to be able to convert the sender's phone number from +11234567890 to 123-456-7890 so it can be compared to records in a MySQL database .
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Java 8 forEach with index [duplicate]
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170
Since you are iterating over an indexable collection (lists, etc.), I presume that you can the...
How can I make my flexbox layout take 100% vertical space?
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116
You should set height of html, body, .wrapper to 100% (in order to inherit full height) and th...
How to tell if JRE or JDK is installed
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160
You can open up terminal and simply type
java -version // this will check your jre version
j...
How to initialize all members of an array to the same value in Swift?
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170
Actually, it's quite simple with Swift. As mentioned in the Apple's doc, you can initialize an...
How to use > in an xargs command?
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201
Do not make the mistake of doing this:
sh -c "grep ABC {} > {}.out"
This will break under ...