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How do I merge my local uncommitted changes into another Git branch?
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Since your files are not yet committed in branch1:
git stash
git checkout branch2
git stash pop
or
git stash
git checkout branch2
git stash list # to check the various stash made in different branch
git stash apply x # t...
How can you encode a string to Base64 in JavaScript?
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You can use btoa() and atob() to convert to and from base64 encoding.
There appears to be some confusion in the comments regarding what these functions accept/return, so…
btoa() accepts a “string” where each character ...
How to check if running as root in a bash script
I'm writing a script that requires root level permissions, and I want to make it so that if the script is not run as root, it simply echoes "Please run as root." and exits.
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How to update attributes without validation
I've got a model with its validations, and I found out that I can't update an attribute without validating the object before.
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Test if a variable is set in bash when using “set -o nounset”
The following code exits with a unbound variable error. How to fix this, while still using the set -o nounset option?
6 A...
PHP Regex to get youtube video ID?
...how me how to get the youtube id out of a url regardless of what other GET variables are in the URL.
19 Answers
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How do I check if a string is unicode or ascii?
What do I have to do in Python to figure out which encoding a string has?
11 Answers
1...
Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]
I want to toggle a variable between 0 and 1. If it's 0 I want to set it to 1, else if it's 1 I want to set it to 0.
31 Answ...
Remove ALL white spaces from text
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You have to tell replace() to repeat the regex:
.replace(/ /g,'')
The g character means to repeat the search through the entire string. Read about this, and other RegEx modifiers available in JavaScript here.
If you want t...
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深度优先搜索
图G(V,E), V为顶点集, E为边集
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O(|E| + |V|)
O(|V|)
广度优先搜索
图G(V,E), V为顶点集, E为边集
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O(|E| + |V|)
O(|V|)
二分搜索
n元已排数组
O(log(n))
O(log(n))
O(1)
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