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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
In PostgreSQL I have a table with a varchar column. The data is supposed to be integers and I need it in integer type in a query. Some values are empty strings.
The following:
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Using the Underscore module with Node.js
I've been learning about node.js and modules, and can't seem to get the Underscore library to work properly... it seems that the first time I use a function from Underscore, it overwrites the _ object with the result of my function call. Anyone know what's going on? For example, here is a session ...
Split string on the first white space occurrence
I didn't get an optimized regex that split me a String basing into the first white space occurrence:
13 Answers
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Why should I avoid std::enable_if in function signatures
...te that one item in the book could be "Avoid std::enable_if in function signatures" .
3 Answers
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How to pass variable from jade template file to a script file?
I'm having trouble with a variable (config) declared in a jade template file (index.jade) that isn't passed to a javascript file, which then makes my javascript crash. Here is the file (views/index.jade):
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Is there a zip-like function that pads to longest length in Python?
...ction that works like zip() but that will pad the results so that the length of the resultant list is the length of the longest input rather than the shortest input?
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Get current folder path
I want to create a program that converts files. I would like the user to be able to place the executable file in any directory, and when executing that program (double-clicking on the .exe) I want the program to process all the files within the current folder where the exe file exists . How can the...
How do I create a directory from within Emacs?
How exactly can I create a new directory using Emacs? What commands do I use? (If possible, please provide an example)
6 An...
How to convert string into float in JavaScript?
I am trying to parse two values from a datagrid. The fields are numeric, and when they have a comma (ex. 554,20), I can't get the numbers after the comma. I've tried parseInt and parseFloat . How can I do this?
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“elseif” syntax in JavaScript
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JavaScript's elseif is in the format "else if", e.g.:
if (condition) {
} else if (other_condition) {
} else {
}
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