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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...
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...
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...
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...
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...
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...
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
...
encryption/decryption with multiple keys
...t.
m=p*q*r; p,q,r are big prime numbers
fi(m)=(p-1)(q-1)(r-1)
d==(e1*e2*e3*...*ei)^(-1) (mod fi(m)); e1...ei are arbitrary numbers, d is calculated to fulfill the equation
y1==x^e1 (mod m)
y2==y1^e2 (mod m)
y3==y2^e3 (mod m)
...
x==yi^d (mod m)
This algorithm could be used for example to in...
Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...69D)
08048E2D 68 64 00 00 00 push 0x64
08048E32 68 2C 01 00 00 push 0x12C
08048E37 FF 35 A0 A3 04 08 push 0804A3A0
08048E3D E8 5E F9 FF FF call gtk_window_set_default_size (080487A0) ;...