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How can I check whether a option already exist in select by JQuery
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This evaluates to true if it already exists:
$("#yourSelect option[value='yourValue']").length > 0;
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How to convert JSON data into a Python object
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UPDATE
With Python3, you can do it in one line, using SimpleNamespace and object_hook:
import json
from types import SimpleNamespace
data = '{"name": "John Smith", "hometown": {"name": "New York", "id": 123}}'
# Parse JSON into an ...
Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
I just installed posgresql with homebrew and when I go on to type the command
22 Answers
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What is an example of the simplest possible Socket.io example?
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Edit: I feel it's better for anyone to consult the excellent chat example on the Socket.IO getting started page. The API has been quite simplified since I provided this answer. That being said, here is the original answer updat...
Changing Locale within the app itself
My users can change the Locale within the app (they may want to keep their phone settings in English but read the content of my app in French, Dutch or any other language ...)
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Access-control-allow-origin with multiple domains
...rabs the Origin request header.
Checks if the origin value is one of the whitelisted values.
If it is valid, sets the Access-Control-Allow-Origin header with that value.
I don't think there's any way to do this solely through the web.config.
if (ValidateRequest()) {
Response.Headers.Remove("A...
Add leading zeroes to number in Java? [duplicate]
... better way of getting this result? This function fails if num has more digits than digits, and I feel like it should be in the library somewhere (like Integer.toString(x,"%3d") or something)
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How to compile and run C/C++ in a Unix console/Mac terminal?
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If it is a simple single source program:
make foo
where the source file is foo.c or foo.cpp, etc.
You dont even need a makefile. Make has enough built-in rules to build your source file into an executable of the same name, m...
How do I set the rounded corner radius of a color drawable using xml?
On the android website, there is a section about color drawables . Defining these drawables in xml looks like this:
3 Ans...
img src SVG changing the styles with CSS
...isely answer the original question, just:
Open your logo.svg in a text editor.
look for fill: #fff and replace it with fill: #000
For example, your logo.svg might look like this when opened in a text editor:
<svg fill="#000000" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w...