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How do I delete an exported environment variable?
...enerally, each time a terminal window is opened, it will load up variables from various places such as ~/.bashrc, ~/.profile, etc. Any variables you set in one terminal instance will not carry over to another. If you have a variable which seems to be set automatically every time you open terminal, t...
How to get index in Handlebars each helper?
...eration) is provided by default with the standard each helper.
snippet from : https://github.com/wycats/handlebars.js/issues/250#issuecomment-9514811
The index of the current array item has been available for some time now via @index:
{{#each array}}
{{@index}}: {{this}}
{{/each}}
For ob...
Difference between binary tree and binary search tree
...r the exact wording in the problems -- a "binary search tree" is different from a "binary tree".
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Long press on UITableView
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How do you prevent the table view from navigating into the cell (if you have 'didSelectRowAtIndexPath' implemented?)
– Marchy
Sep 15 '16 at 17:45
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Java default constructor
...h one of the following is a default constructor and what differentiates it from any other constructor?
13 Answers
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if else statement in AngularJS templates
I want to do a condition in an AngularJS template. I fetch a video list from the Youtube API. Some of the videos are in 16:9 ratio and some are in 4:3 ratio.
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Contains method for a slice
...thod is trivial to write, and mkb gave you a hint to use the binary search from the sort package. But if you are going to do a lot of such contains checks, you might also consider using a map instead.
It's trivial to check if a specific map key exists by using the value, ok := yourmap[key] idiom. S...
What exactly does an #if 0 … #endif block do?
...tax error! Why? Because block comments do not nest, and so (as you can see from SO's syntax highlighting) the */ after the word "NULL" terminates the comment, making the baz call not commented out, and the */ after baz a syntax error. On the other hand:
#if 0
foo();
bar(x, y); /* x must not be NULL...
`find -name` pattern that matches multiple patterns
...d the escaped parenthesis unless you are doing some additional mods. Here from the man page they are saying if the pattern matches, print it. Perhaps they are trying to control printing. In this case the -print acts as a conditional and becomes an "AND'd" conditional. It will prevent any .c file...
How can I “disable” zoom on a mobile web page?
...vice-width, initial-scale=1.0">
Prevent scaling- and prevent the user from being able to zoom:
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
Removing all zooming, all scaling
<meta name="viewport" content="user-scalable=no, ...