大约有 45,000 项符合查询结果（耗时：0.0457秒） [XML]
What MySQL data type should be used for Latitude/Longitude with 8 decimal places?
... size of number, so by using it instead of FLOAT you might avoid precision errors when doing some calculations. If you were just storing and retrieving the numbers without calculation then in practice FLOAT would be safe, although there's no harm in using DECIMAL. With calculations FLOAT is still mo...
Can I use the range operator with if statement in Swift?
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I get this error => Can't form Range with upperBound < lowerBound
– Ahmadreza
Sep 7 '19 at 5:22
add a com...
How do I comment out a block of tags in XML?
...e spaces between the 2 closing -- of the -->. This avoids randomly odd errors in XML and HTML.
– SherylHohman
Dec 8 '18 at 23:24
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How to pass in password to pg_dump?
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I always got the error 'Peer authentication failed for user "username"'. Solution was: PGPASSWORD="mypass" pg_dump -U username -h localhost > mydb.dump
– Martin Pabst
Sep 11 '17 at 16:18
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Secure random token in Node.js
...nc */
function randomString(length, chars) {
if (!chars) {
throw new Error('Argument \'chars\' is undefined');
}
var charsLength = chars.length;
if (charsLength > 256) {
throw new Error('Argument \'chars\' should not have more than 256 characters'
+ ', otherwise unpredictab...
How to compile for Windows on Linux with gcc/g++?
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cool, the cpp had very simple errors (void main(){} etc...), I guess it compiles at windows but fails at mingw, I fixed them. I tried also i586-mingw32msvc-cpp and it generated a text file with something like things to be compiled lol.. the g++ one worke...
Default value of 'boolean' and 'Boolean' in Java
...ithin a method you will have to initialize it, or there will be a compiler error.
If you declare as a primitive i.e. boolean. The value will be false by default if it's an instance variable (or class variable). If it's declared within a method you will still have to initialize it to either true o...
What is the easiest way to make a C++ program crash?
...ry, and is defined as "causing abnormal program termination" (e.g, a fatal error or crash).
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Fastest way to find second (third…) highest/lowest value in vector or column
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I used this method, but get the following error: Error in sort.int(x, na.last = na.last, decreasing = decreasing, ...) : index 4705 outside bounds Any idea what might the issue be? Some details: My x is a numeric vector of length 4706 with some NAs in the data. I...
How to inspect FormData?
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var pair of throws errors for me. Replacing it with in seems to print something at least, however its not a key or value like MDN states.
– Johnny Welker
Apr 15 '16 at 16:23
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