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In Jinja2, how do you test if a variable is undefined?
Converting from Django, I'm used to doing something like this:
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Python how to write to a binary file?
I have a list of bytes as integers, which is something like
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Rails params explained?
Could anyone explain params in Rails controller: where they come from, and what they are referencing?
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How do you append to an already existing string?
I want append to a string so that every time I loop over it will add say "test" to the string.
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postgresql - replace all instances of a string within text field
In postgresql, how do I replace all instances of a string within a database column?
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iOS - How to set a UISwitch programmatically
I want to set my UISwitch to on or off programmatically. How would I do that? I am an iOS newbie.
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Regular expression for a string that does not start with a sequence
I'm processing a bunch of tables using this program , but I need to ignore ones that start with the label "tbd_". So far I have something like [^tbd_] but that simply not match those characters.
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“new” keyword in Scala
I have a very simple question - when should we apply the new keyword when creating objects in Scala? Is it when we try to instantiate Java objects only?
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How to convert a Git shallow clone to a full clone?
Follow-up of this so-question: if I have a shallow clone, how to fetch all older commits to make it a full clone?
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Ignore mouse interaction on overlay image
I have a menu bar with hover effects, and now I want to place a transparent image with a circle and a "handdrawn" text over one of the menu items. If I use absolute positioning to place the overlay image above the menu item, the user will not be able to click the button and the hover effect will not...