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Force DOM redraw/refresh on Chrome/Mac
...nt.getElementById('parentOfElementToBeRedrawn').style.display = 'block';
If this simple redraw doesn't work you can try this one. It inserts an empty text node into the element which guarantees a redraw.
var forceRedraw = function(element){
if (!element) { return; }
var n = document.cre...
Why do you need to create a cursor when querying a sqlite database?
...be used to fetch data from the DBMS into an
application but also to identify a row in a table to be updated or
deleted. The SQL:2003 standard defines positioned update and
positioned delete SQL statements for that purpose. Such statements do
not use a regular WHERE clause with predicates. In...
How to access a dictionary element in a Django template?
... and see what SQL the ORM generates as I'm not sure off the top of my head if it will pre-cache the properties and just create a subselect for the property or if it will iteratively / on-demand run the query to calculate vote count. But if it generates atrocious queries, you could always populate th...
Why is Cache-Control attribute sent in request header (client to server)?
...o server) to force validation of the resource in the intermediate proxies.
If the client doesn't send this request to the server, intermediate proxies will return a copy of the content if it is fresh (has not expired according to Expire or max-age fields). Cache-Control directs these proxies to reva...
What's the fastest way to do a bulk insert into Postgres?
...ince indexes are also used for physical layout of the db records. Not sure if removing indexes in any database is a good idea.
– Farjad
Sep 2 '14 at 9:45
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The SMTP server requires a secure connection or the client was not authenticated. The server respons
...y have enabled double authentication in gmail. Also check your gmail inbox if you are getting any security alerts. In such cases check other answer of @mjb as below
Below is the very general thing that i always check first for such issues
client.UseDefaultCredentials = true;
set it to false.
No...
How can I modify the size of column in a MySQL table?
...
Have you tried this?
ALTER TABLE <table_name> MODIFY <col_name> VARCHAR(65353);
This will change the col_name's type to VARCHAR(65353)
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while (1) Vs. for (;;) Is there a speed difference?
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"I try not to define new keywords for my maintenance" — if only more people took that attitude I wouldn’t be clutching at all these inane and magical sleight-of-hand shenanigans every time I turned around!
– tchrist
Aug 19 '15 at 23:22
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_DEBUG vs NDEBUG
Which preprocessor define should be used to specify debug sections of code?
6 Answers
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Best way to initialize (empty) array in PHP
...S3 for example), it has been noted that initializing a new array is faster if done like this var foo = [] rather than var foo = new Array() for reasons of object creation and instantiation. I wonder whether there are any equivalences in PHP?
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