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Get number of digits with JavaScript
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good technique to get no of digit, but, what if it is a fraction number, ie, 12.5, then your function will return 4 instead of 3...
– Swarnendu Paul
Feb 14 '13 at 16:45
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How can I read inputs as numbers?
...on does (read the next section to understand the implication).
Python 2's equivalent of Python 3's input is the raw_input function.
Python 2.x
There were two functions to get user input, called input and raw_input. The difference between them is, raw_input doesn't evaluate the data and returns as...
How to become an OpenCart guru? [closed]
...not. By default, with a standard two part route (aaa/bbb above), a default index() method is called. If the third part of a route (ccc above) is used, this method will be run instead. For example, account/return/insert will load the /catalog/controller/account/return.php file and class, and try to c...
Can a pointer to base point to an array of derived objects?
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You cannot index like that. You have allocated an array of Rectangles and stored a pointer to the first in shapes. When you do shapes[1] you're dereferencing (shapes + 1). This will not give you a pointer to the next Rectangle, but a po...
Linux command (like cat) to read a specified quantity of characters
Is there a command like cat in linux which can return a specified quantity of characters from a file?
9 Answers
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Find out whether Chrome console is open
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requestAnimationFrame (Late 2019)
Leaving these previous answers here for historical context. Currently Muhammad Umer's approach works on Chrome 78, with the added advantage of detecting both close and open events.
function toS...
Insert the carriage return character in vim
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Type: ctrl-v ctrl-m
On Windows Use: ctrl-q ctrl-m
Ctrl-V tells vi that the next character typed should be inserted literally and ctrl-m is the keystroke for a carriage return.
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Add new value to an existing array in JavaScript [duplicate]
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array.unshift("value2");
array.unshift("value3");
Adding values at some index:
var array = [];
array[index] = "value1";
or by using splice
array.splice(index, 0, "value1", "value2", "value3");
Choose one you need.
s...
How to slice an array in Bash
...rns the contents of the array, :1:2 takes a slice of length 2, starting at index 1.
A=( foo bar "a b c" 42 )
B=("${A[@]:1:2}")
C=("${A[@]:1}") # slice to the end of the array
echo "${B[@]}" # bar a b c
echo "${B[1]}" # a b c
echo "${C[@]}" # bar a b c 42
echo "${C[@]...
Boolean Field in Oracle
...r using Y and NULL as the values. This makes for a very small (read fast) index that takes very little space.
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