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How to unit test a Node.js module that requires other modules and how to mock the global require fun
... of overriding the global require inside your module while you are testing it.
This means you need no changes to your code in order to inject mocks for required modules.
Proxyquire has a very simple api which allows resolving the module you are trying to test and pass along mocks/stubs for its req...
Fastest way to check if a string matches a regexp in ruby?
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Starting with Ruby 2.4.0, you may use RegExp#match?:
pattern.match?(string)
Regexp#match? is explicitly listed as a performance enhancement in the release notes for 2.4.0, as it avoids object allocations performed by other methods s...
Why is “a” != “a” in C?
...ude <string.h>
...
if(strcmp("a", "a") == 0)
{
// Equal
}
Additionally, "a" == "a" may indeed return true, depending on your compiler, which may combine equal strings at compile time into one to save space.
When you're comparing two character values (which are not pointers), it is a n...
When to use AtomicReference in Java?
...ic (i.e. thread-safe, non-trivial) operations on a reference, for which monitor-based synchronization is not appropriate. Suppose you want to check to see if a specific field only if the state of the object remains as you last checked:
AtomicReference<Object> cache = new AtomicReference<Ob...
Can I escape html special chars in javascript?
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@jamix You can not do a global replacement with raw strings, while modern browser engines optimize simple regular expression pretty good.
– bjornd
May 30 '14 at 15:43
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How do you convert Html to plain text?
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If you are talking about tag stripping, it is relatively straight forward if you don't have to worry about things like <script> tags. If all you need to do is display the text without the tags you can accomplish that with a regular expression:
<[^>]*&...
django MultiValueDictKeyError error, how do I deal with it
I'm trying to save a object to my database, but it's throwing a MultiValueDictKeyError error.
7 Answers
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Is there a shortcut on Android Studio to convert a text to uppercase?
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Select the text, then go to Edit → Toggle Case (Ctrl+Shift+U on Windows).
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How to set commands output as a variable in a batch file
Is it possible to set a statement's output of a batch file to a variable, for example:
7 Answers
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Remove a HTML tag but keep the innerHtml
...ts() to target the text content of the <b>, then .unwrap() to remove its parent <b> element.
For the greatest performance, always go native:
var b = document.getElementsByTagName('b');
while(b.length) {
var parent = b[ 0 ].parentNode;
while( b[ 0 ].firstChild ) {
par...