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What does the function then() mean in JavaScript?

...er and an error handler, so S1 and E1 for P1, S2 and E2 for P2, and S3 and E3 for P3: xhrCall() .then(S1, E1) //P1 .then(S2, E2) //P2 .then(S3, E3) //P3 In the normal flow of things, where there are no errors, the application would flow through S1, S2, and finally, S3. But in real life, thi...
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Break promise chain and call a function based on the step in the chain where it is broken (rejected)

... { b = handleErrorTwo(e2); } var c = stepThree(b); } catch(e3) { c = handleErrorThree(e3); } The onRejected handler (the second argument of then) is essentially an error correction mechanism (like a catch block). If an error is thrown in handleErrorOne, it will be caught by the...
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How to use > in an xargs command?

...3ba06c f517006d 9897747b ed8a4694 b1acba1b 1464beb4 60055629 3f2356f3 3e9c4e3c 76e3f3af a9db4b32 bd33322b 975696fc e6b23cfb $ bash install.sh If you need to move it to a server, that does not have GNU Parallel installed, try parallel --embed. ...
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parseInt vs unary plus, when to use which?

...st on base10). The unary + will convert them properly though. parseInt('2e3',10) === 2; //true. This is supposed to be 2000 +'2e3' === 2000; //true. This one's correct. parseInt("0xf", 10) === 0; //true. This is supposed to be 15 +'0xf' === 15; //true. This one's corr...
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What is the difference between RegExp’s exec() function and String’s match() function?

...of .match() using the g flag: var str = "qqqABApppabacccaba"; var e1, e2, e3, e4, e5; e1 = str.match(/nop/g); //null e2 = str.match(/no(p)/g); //null e3 = str.match(/aba/g); //["aba", "aba"] e4 = str.match(/aba/gi); //["ABA", "aba", "aba"] e5 = str.match(/(ab)a/g); //["aba", "aba"] ignoring capture...
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Cross-browser custom styling for file upload button [duplicate]

...lay: inline-block; background: -webkit-linear-gradient(top, #f9f9f9, #e3e3e3); border: 1px solid #999; border-radius: 3px; padding: 5px 8px; outline: none; white-space: nowrap; -webkit-user-select: none; cursor: pointer; text-shadow: 1px 1px #fff; fo...
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How do I view all commits for a specific day?

...st an empty line: $ commitsOnDates First commit: 375bcfb 375bcfbbf548134a4e34c36e3f28d87c53b2445f 2015-08-03 13:37:16 -0700 Last commit: 1d4c88c 1d4c88ce6a15efaceda1d653eed3346fcae8f5e6 2018-10-13 21:32:27 -0700 Date to search for commits: 2015-08-13 Date to search for commits: 2015-08-03 375bcfb...
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What does “zend_mm_heap corrupted” mean

... "client" ==9749== ==9749== Invalid write of size 2 ==9749== at 0x4C2F7E3: memcpy@@GLIBC_2.14 (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==9749== by 0x40061B: main (an.c:13) ==9749== Address 0x50 is not stack'd, malloc'd or (recently) free'd ==9749== ==9749== ==9749== Process...
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What's your most controversial programming opinion?

... community wiki 5 revs, 3 users 82%Dmitri Nesteruk add a comment  |  ...
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How to determine whether a given Linux is 32 bit or 64 bit?

... community wiki 2 revs, 2 users 82%Reed Hedges ...