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How to invert a grep expression
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HTML Form: Select-Option vs Datalist-Option
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The equivalent for an input plus datalist would be setting the value="(default option)" on the input itself. For an input with type="text", this text will appear by default but be editable.
– Bemisawa
Jul 18 '17 at 18:38
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Printing the correct number of decimal points with cout
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With <iomanip>, you can use std::fixed and std::setprecision
Here is an example
#include <iostream>
#include <iomanip>
int main()
{
double d = 122.345;
std::cout << std::fixed;
std::cout << std::setprecision(2);
std::cout <<...
Is it possible to set the equivalent of a src attribute of an img tag in CSS?
Is it possible to set the src attribute value in CSS? At present, what I am doing is:
25 Answers
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Uploading base64 encoded Image to Amazon S3 via Node.js
...ket: 'myBucket'} } );
inside your router method :-
ContentType should be set to the content type of the image file
buf = Buffer.from(req.body.imageBinary.replace(/^data:image\/\w+;base64,/, ""),'base64')
var data = {
Key: req.body.userId,
Body: buf,
ContentEncoding: 'base64',
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How to create empty data frame with column names specified in R? [duplicate]
I need to create an empty data frame in R with specified column names. Any simplest way ?
2 Answers
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What's the most appropriate HTTP status code for an “item not found” error page
...o update it, some other thread or process ignored your lock (or you didn't set one) and deleted it. That's not good. Alternatively, if you're trying to update object id=n (where n is provided to you) without first checking it exists, you're missing a validation step in your update logic, which is al...
Auto-loading lib files in Rails 4
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Escape Character in SQL Server
...ubling up the quotes).
e.g. instead of doing
DECLARE @SQL NVARCHAR(1000)
SET @SQL = 'SELECT * FROM MyTable WHERE Field1 = ''AAA'''
EXECUTE(@SQL)
try this:
DECLARE @SQL NVARCHAR(1000)
SET @SQL = 'SELECT * FROM MyTable WHERE Field1 = @Field1'
EXECUTE sp_executesql @SQL, N'@Field1 VARCHAR(10)', 'A...
Is there an opposite of include? for Ruby Arrays?
I've got the following logic in my code:
11 Answers
11
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