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What is the best way to exit a function (which has no return value) in python before the function en
...oes exactly the same as
return None
Your function will also return None if execution reaches the end of the function body without hitting a return statement. Returning nothing is the same as returning None in Python.
sha...
$watch an object
...s in JavaScript, they will be checked for "reference" equality, which asks if the two objects refer to the same thing, rather than "value" equality, which checks if the values of all the properties of those objects are equal.
Per the Angular documentation, the third parameter is for objectEquality:...
Replace all elements of Python NumPy Array that are greater than some value
...and most concise way to do this is to use NumPy's built-in Fancy indexing. If you have an ndarray named arr, you can replace all elements >255 with a value x as follows:
arr[arr > 255] = x
I ran this on my machine with a 500 x 500 random matrix, replacing all values >0.5 with 5, and it t...
How to compare two colors for similarity/difference
...hat I don't know how to do that manually step by step. So it is even more difficult to think of a program.
19 Answers
...
How to run a shell script in OS X by double-clicking?
...ace
cd -- "$(dirname "$BASH_SOURCE")" right after the shebang line
or, if you must remain POSIX-compliant, cd -- "$(dirname "$0")".
For edge cases, such as finding a symlinked script's true source directory, see this answer of mine.
If the script is unexpectedly not executable:
Make it execu...
How to place two divs next to each other?
... 500px;
border: 1px solid black;
overflow: hidden; /* will contain if #first is longer than #second */
}
#first {
width: 300px;
float:left; /* add this */
border: 1px solid red;
}
#second {
border: 1px solid green;
overflow: hidden; /* if you don't want #second to wrap be...
Cannot simply use PostgreSQL table name (“relation does not exist”)
...);
SELECT * FROM sf_bands; -- ERROR!
Use double-quotes to delimit identifiers so you can use the specific mixed-case spelling as the table is defined.
SELECT * FROM "SF_Bands";
Re your comment, you can add a schema to the "search_path" so that when you reference a table name without qualify...
Get specific line from text file using just shell script
I am trying to get a specific line from a text file.
10 Answers
10
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Difference between == and === in JavaScript [duplicate]
What is the difference between == and === in JavaScript? I have also seen != and !== operators. Are there more such operators?
...
Remove outline from select box in FF
...ox uses the text color to determine the color of the dotted border. So say if you do...
select {
color: rgba(0,0,0,0);
}
Firefox will render the dotted border transparent. But of course your text will be transparent too! So we must somehow display the text. text-shadow comes to the rescue:
sel...