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What do the different readystates in XMLHttpRequest mean, and how can I use them?
...alized
1 The request has been set up
2 The request has been sent
3 The request is in process
4 The request is complete
(from https://www.w3schools.com/js/js_ajax_http_response.asp)
In practice you almost never use any of them except for 4.
Some XMLHttpRequest implementations ...
Get Context in a Service
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edited Jan 4 '12 at 13:14
answered Jun 22 '11 at 20:37
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Check if a Postgres JSON array contains a string
...ch rabbit likes two foods and 10% of them like carrots:
d=# -- Postgres 9.3 solution
d=# explain analyze select info->>'name' from rabbits where exists (
d(# select 1 from json_array_elements(info->'food') as food
d(# where food::text = '"carrots"'
d(# );
Execution time: 3084.927 ms
d=...
Passing multiple error classes to ruby's rescue clause in a DRY fashion
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How to prevent gcc optimizing some statements in C?
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Retina displays, high-res background images
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Multiple Parameters for jQuery selector?
...#id .class')
– chobo2
Apr 20 '10 at 3:22
That really is backwards from what you would have thought looking at the sour...