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https connection using CURL from command line
...ld and facing a problem while connecting to a server.
Basically, I need to test connectivity over https from one machine to another machine.
I have a URL to which I need to connect from Machine A (a linux machine)
I tried this on command prompt
...
setState vs replaceState in React.js
...components are setting their states frequently.
I asserted this with this test case.
If your current state is {a: 1}, and you call this.setState({b: 2}); when the state is applied, it will be {a: 1, b: 2}. If you called this.replaceState({b: 2}) your state would be {b: 2}.
Side note: State isn...
Margin while printing html page
...
This works now in Chrome 18 and IE9 (didn't test earlier versions). Still not working in Firefox 12, but you could do a server-side detection and add a body class <body class="firefox"> so in your css you can do body.firefox {margin: 0mm; padding: 0.25in;}, that...
Is 1.0 a valid output from std::generate_canonical?
...ation with libc++ confirms this expectation.
template<class F>
void test(long long N, const F& get_a_float) {
int count = 0;
for (long long i = 0; i < N; ++i) {
float f = get_a_float();
if (f == 1.0f) {
++count;
}
}
printf("Expected %...
Convert Enum to String
...d by the string in the compiled result, which in turn means this is the fastest way possible.
Any use of enum names does interfere with code obfuscation, if you consider obfuscation of enum names to be worthwhile or important - that's probably a whole other question.
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jQuery first child of “this”
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I've added jsperf test to see the speed difference for different approaches to get the first child (total 1000+ children)
given, notif = $('#foo')
jQuery ways:
$(":first-child", notif) - 4,304 ops/sec - fastest
notif.children(":first") - 653 ...
Mongoose, Select a specific field with find
...who want to use where clause in above dbSchema.Somevalue.find({userEmail:'test@test.com'},'userEmail -_id', function(err, someValue)
– user2180794
May 26 '16 at 7:15
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Is there a way to get element by XPath using JavaScript in Selenium WebDriver?
...
Assuming your objective is to develop and test your xpath queries for screen maps. Then either use Chrome's developer tools. This allows you to run the xpath query to show the matches. Or in Firefox >9 you can do the same thing with the Web Developer Tools cons...
How to remove spaces from a string using JavaScript?
...
SHORTEST and FASTEST: str.replace(/ /g, '');
Benchmark:
Here my results - (2018.07.13) MacOs High Sierra 10.13.3 on Chrome 67.0.3396 (64-bit), Safari 11.0.3 (13604.5.6), Firefox 59.0.2 (64-bit) ):
SHORT strings
Short string simi...
explicit casting from super class to subclass
...t ClassCastException.
So if you are downcasting you should use instanceof test to avoid screwing up.
if (animal instanceof Dog) {
Dog dog = (Dog) animal;
}
Now a question comes to our mind. Why the hell compiler is allowing the downcast when eventually it is going to throw a java.lang.ClassCa...