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Generate colors between red and green for a power meter?

...t how to improve a color algorithm i have for coloring a bar chart in HTML/PHP... SO suggested this question as similar and your answer helped me fix the issue without having to ask the question! Thanks! – beggs Jul 30 '09 at 3:49 ...
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Why is the gets function so dangerous that it should not be used?

... In order to use gets safely, you have to know exactly how many characters you will be reading, so that you can make your buffer large enough. You will only know that if you know exactly what data you will be reading. Instead of...
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How to use DISTINCT and ORDER BY in same SELECT statement?

... The problem is that the columns used in the ORDER BY aren't specified in the DISTINCT. To do this, you need to use an aggregate function to sort on, and use a GROUP BY to make the DISTINCT work. Try something like this: SELECT DISTINCT Category, MAX(CreationDate) FR...
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Python dictionary: are keys() and values() always the same order?

... apparently the statement in the 3.x documentation is clearer: "the order of items will directly correspond" – Shaohua Li May 8 '16 at 3:49 ...
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Is object empty? [duplicate]

...bject of keys just to count how many keys are inside, than destroys it! In order to create that object he needs to loop overt the keys... so why use it and not the (for... in...) option :) var a = {}; function timeit(func,count) { if (!count) count = 100000; var start = Date.now(); ...
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ActiveRecord: size vs count

...m? That you might be hitting the DB twice if you don't do it in the right order (e.g. if you render the number of elements in a table on top of the rendered table, there will be effectively 2 calls sent to the DB). share ...
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How can I merge two hashes without overwritten duplicate keys in Ruby?

... Here you can merge your 2 hash by reverse_merge order = { id: 33987, platform: 'web' } user = { name: 'Jhon Doe', email: 'jhon.doe@gmail.com' } newHash = oder.reverse_merge!(user) render json: { data: newHash, status: 200 } ...
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Deprecated warning for Rails 4 has_many with order

... In Rails 4, :order has been deprecated and needs to be replaced with lambda scope block as shown in the warning you've posted in the question. Another point to note is that this scope block needs to be passed before any other association...
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Send POST request using NSURLSession

... its a php server do you have any reference related to Postman ? – tryKuldeepTanwar Jul 28 '16 at 10:22 ...
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How to redirect all HTTP requests to HTTPS

... http://www.example.com ) to HTTPS ( https://www.example.com ). I'm using PHP btw. Can I do this in .htaccess? 26 Answers ...