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Can I assume (bool)true == (int)1 for any C++ compiler?
...r is defined as FALSE = 0 and TRUE != FALSE, which quite often in practice means that any value different from 0 is considered TRUE.
A lot of modern compilers will actually issue a warning for any code that implicitly tries to cast from BOOL to bool if the BOOL value is different than 0 or 1.
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Remove an item from array using UnderscoreJS
...score.js, you could combine .findWhere with .without:
var arr = [{
id: 1,
name: 'a'
}, {
id: 2,
name: 'b'
}, {
id: 3,
name: 'c'
}];
//substract third
arr = _.without(arr, _.findWhere(arr, {
id: 3
}));
console.log(arr);
<script src="https://cdnjs.cloudflare.com/...
How to get the currently logged in user's user id in Django?
How to get the currently logged-in user's id?
4 Answers
4
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jQuery or CSS selector to select all IDs that start with some string [duplicate]
How can I select all elements whose id starts with "player_"?
4 Answers
4
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jQuery dot in ID selector? [duplicate]
... be escaped with with two backslashes: \\. For example, an element with
id="foo.bar", can use the selector $("#foo\\.bar").
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What are the differences between “=” and “
...for decades?
It’s because in R’s syntax the symbol = has two distinct meanings that get routinely conflated:
The first meaning is as an assignment operator. This is all we’ve talked about so far.
The second meaning isn’t an operator but rather a syntax token that signals named argument pa...
getApplication() vs. getApplicationContext()
...
Very interesting question. I think it's mainly a semantic meaning, and may also be due to historical reasons.
Although in current Android Activity and Service implementations, getApplication() and getApplicationContext() return the same object, there is no guarantee that this will ...
How to create a temporary directory?
... @madfriend really? if mktemp fails, WORK_DIR will be empty, meaning the command would just be rm -rf with no argument. I don't use FreeBSD but I'd be pretty surprised if rm -rf was equivalent to rm -rf .
– jbg
Jul 11 '17 at 8:37
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How does tuple comparison work in Python?
...s are compared lexicographically by comparing corresponding elements. This means that to compare equal, every element must compare equal and the two sequences must be of the same type and have the same length.
Also Value Comparisons for further details:
Lexicographical comparison between built-in ...
What is the difference between 'java', 'javaw', and 'javaws'?
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javaw -cp ... mypath.MyClass ... arguments 1>log.txt 2>err.txt
It means, if the Java application prints out anything via System.out or System.err, it is written to those files, as also with using java (without w). Especially on starting java, the JRE may write starting errors (class not fou...