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How to wrap async function calls into a sync function in Node.js or Javascript?
...ata using Node.js built-in fs.readFileSync . It's obvious both getData and fs.readFileSync are sync functions. One day you were told to switch the underlying data source to a repo such as MongoDB which can only be accessed asynchronously. You were also told to avoid pissing off your users, ge...
In Functional Programming, what is a functor?
...al programming, but the authors typically assume the reader already understands the term. Looking around on the web has provided either excessively technical descriptions (see the Wikipedia article ) or incredibly vague descriptions (see the section on Functors at this ocaml-tutorial website ).
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Is Java a Compiled or an Interpreted programming language ?
...ose to interpret the bytecode instead of JIT compiling it to machine code, and running it directly. While this is still considered an "interpreter," It's quite different from interpreters that read and execute the high level source code (i.e. in this case, Java source code is not interpreted direc...
Why am I getting a NoClassDefFoundError in Java?
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This is caused when there is a class file that your code depends on and it is present at compile time but not found at runtime. Look for differences in your build time and runtime classpaths.
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Checking if a variable is not nil and not zero in ruby
I am using the following code to check if a variable is not nil and not zero
18 Answers
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Who is “us” and who is “them” according to Git?
After a Git rebase, and in other circumstances, you can find some files marked as deleted by us in the git status report. Who is us according to Git and why?
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When should I use Arrow functions in ECMAScript 6?
...ght about code style in the context of the upcoming ECMAScript 6 (Harmony) and who have already worked with the language.
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“git rm --cached x” vs “git reset head -- x”?
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There are three places where a file, say, can be - the tree, the index and the working copy. When you just add a file to a folder, you are adding it to the working copy.
When you do something like git add file you add it to the index. And when you commit it, you add it to the tree as well.
It ...
Reference - What does this error mean in PHP?
This is a number of answers about warnings, errors, and notices you might encounter while programming PHP and have no clue how to fix them. This is also a Community Wiki, so everyone is invited to participate adding to and maintaining this list.
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Android ADB device offline, can't issue commands
I can't connect to my device anymore using ADB through the command line or in Eclipse .
58 Answers
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