大约有 16,000 项符合查询结果（耗时：0.0571秒） [XML]
Convert blob to base64
...8 string causes problems (unfortunately Response API doesn't provide a way converting to binary string), so array buffer is use as intermediate instead, which requires two more steps (converting it to byte array THEN to binary string), if you insist on using native btoa method.
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How to convert a DOM node list to an array in Javascript?
...rom(nodeList)
But thinking about it, I guess the most common use case to convert a NodeList to an Array is to iterate over it, and now the NodeList.prototype object has the forEach method natively, so if you are on a modern environment you can use it directly, or have a pollyfill.
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Difference between as.POSIXct/as.POSIXlt and strptime for converting character vectors to POSIXct/PO
I have followed a number of questions here that asks about how to convert character vectors to datetime classes. I often see 2 methods, the strptime and the as.POSIXct/as.POSIXlt methods. I looked at the 2 functions but am unclear what the difference is.
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Why cast unused return values to void?
...tandard(2003) says in §5.2.9/4 says,
Any expression can be explicitly converted to type “cv void.” The expression value is discarded.
So you can write :
//suppressing unused variable warnings
static_cast<void>(unusedVar);
static_cast<const void>(unusedVar);
static_cast<vol...
When to choose checked and unchecked exceptions
... in an unchecked exception. If you follow this rule you will find yourself converting checked exceptions to unchecked exceptions and vice versa depending on what layer you are in.
For both checked and unchecked exceptions, use the right abstraction level. For example, a code repository with two dif...
What's wrong with cplusplus.com?
...while using the function.
cplusplus.com Return section states "...If the converted value would be out of the range of representable values by an int, it causes undefined behavior."
This is correct, as per the standard "If the numeric value of the string can't be represented in int, then the behav...
Add default value of datetime field in SQL Server to a timestamp
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This fails with the error message "Unable to convert between [B and TIMESTAMP]". It seems CURRENT_TIMESTAMP is a binary value, not a datetime.
– Sindri Traustason
Oct 18 '13 at 12:37
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jQuery Ajax error handling, show custom exception messages
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You need to convert the responseText to JSON. Using JQuery:
jsonValue = jQuery.parseJSON( jqXHR.responseText );
console.log(jsonValue.Message);
share
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Parse date without timezone javascript
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The date is parsed correctly, it's just toString that converts it to your local timezone:
let s = "2005-07-08T11:22:33+0000";
let d = new Date(Date.parse(s));
// this logs for me
// "Fri Jul 08 2005 13:22:33 GMT+0200 (Central European Summer Time)"
// and something ...
Dealing with float precision in Javascript [duplicate]
...ant to group them by rounding them down to the nearest multiple of x and convert the result to a string.
5 Answers
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