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How to elegantly rename all keys in a hash in Ruby? [duplicate]
...at! Now, if I only want to change some of the key names, is there a way to test if a mapping exist for the key?
– Chanpory
Nov 9 '10 at 20:18
28
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Detect blocked popup in Chrome
...rowsers (as described in the answer to this question ). Here's the basic test:
16 Answers
...
pretty-print JSON using JavaScript
...?\d+)?)/g, function (match) {
var cls = 'number';
if (/^"/.test(match)) {
if (/:$/.test(match)) {
cls = 'key';
} else {
cls = 'string';
}
} else if (/true|false/.test(match)) {
cls = 'boolean';
...
Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?
...ing iterations, a WHILE loop may be more appropriate --- you'll be able to test the loop condition at every iteration, and set the value of the loop variable(s) as you wish:
n = 10;
f = n;
while n > 1
n = n-1;
f = f*n;
end
disp(['n! = ' num2str(f)])
Btw, the for-each loop in Java (and ...
Fastest way to check a string contain another substring in JavaScript?
...h a performance issue on JavaScript. So I just want to ask: what is the fastest way to check whether a string contains another substring (I just need the boolean value)? Could you please suggest your idea and sample snippet code?
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Fastest method to replace all instances of a character in a string [duplicate]
What is the fastest way to replace all instances of a string/character in a string in JavaScript? A while , a for -loop, a regular expression?
...
Convert absolute path into relative path given a current directory using Bash
...ile1" "$file2"
For example:
$ realpath --relative-to=/usr/bin/nmap /tmp/testing
../../../tmp/testing
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How to remove all characters after a specific character in python?
...s 1.13 for .split (comment formatting doesn't really let me show the exact tests, but I'm using @Ayman's text and separator) -- so, +1 for @Ayman's answer!
– Alex Martelli
May 24 '09 at 22:15
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How to set environment variable or system property in spring tests?
I'd like to write some tests that check the XML Spring configuration of a deployed WAR. Unfortunately some beans require that some environment variables or system properties are set. How can I set an environment variable before the spring beans are initialized when using the convenient test style wi...
How to profile a bash shell script slow startup?
...d
Reading this and because profiling is an important step, I've done some test and research about this whole SO question and already posted answers.
There is 4+ answer:
The first is based on @DennisWilliamson's idea but with a lot less of resource consumption
The second was my own (before this;)...