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How do I create a link using javascript?
...ut the two together to create a link on a page using Javascript. Any help is appreciated.
7 Answers
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Find all records which have a count of an association greater than zero
...oup('projects.id')
UPDATE:
As pointed out by @Tolsee, you can also use distinct.
Project.joins(:vacancies).distinct
As an example
[10] pry(main)> Comment.distinct.pluck :article_id
=> [43, 34, 45, 55, 17, 19, 1, 3, 4, 18, 44, 5, 13, 22, 16, 6, 53]
[11] pry(main)> _.size
=> 17
[12]...
Regex to match only letters
... matches one or more letters and ^[a-zA-Z]+$ matches only strings that consist of one or more letters only (^ and $ mark the begin and end of a string respectively).
If you want to match other letters than A–Z, you can either add them to the character set: [a-zA-ZäöüßÄÖÜ]. Or you use prede...
Raise warning in Python without interrupting program
I am trying to raise a Warning in Python without making the program crash / stop / interrupt.
3 Answers
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Why invoke Thread.currentThread.interrupt() in a catch InterruptException block?
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This is done to keep state.
When you catch the InterruptException and swallow it, you essentially prevent any higher level methods/thread groups from noticing the interrupt. Which may cause problems.
By calling Thread.current...
How to get element by classname or id
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getElementsByClassName is a function on the DOM Document. It is neither a jQuery nor a jqLite function.
Don't add the period before the class name when using it:
var result = document.getElementsByClassName("multi-files");
Wrap it in jqLite (or...
How to find keys of a hash?
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There is function in modern JavaScript (ECMAScript 5) called Object.keys performing this operation:
var obj = { "a" : 1, "b" : 2, "c" : 3};
alert(Object.keys(obj)); // will output ["a", "b", "c"]
Compatibility details can be fou...
How do I check OS with a preprocessor directive?
...erating system on which it gets compiled. I'm looking for something like this:
16 Answers
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Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
Can someone explain this (straight from the docs - emphasis mine):
8 Answers
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SQL statement to select all rows from previous day
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answered Oct 1 '09 at 11:48
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