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How to go about formatting 1200 to 1.2k in java
...cient than a previous solution I wrote that was using arrays and was more difficult to read.
private static final NavigableMap<Long, String> suffixes = new TreeMap<> ();
static {
suffixes.put(1_000L, "k");
suffixes.put(1_000_000L, "M");
suffixes.put(1_000_000_000L, "G");
suffixes...
How can I check if an ip is in a network in Python?
Given an ip address (say 192.168.0.1), how do I check if it's in a network (say 192.168.0.0/24) in Python?
27 Answers
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On Duplicate Key Update same as insert
I've searched around but didn't find if it's possible.
8 Answers
8
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In Typescript, How to check if a string is Numeric
...) // 1234
Number('9BX9') // NaN
You can also use the unary plus operator if you like shorthand:
+'1234' // 1234
+'9BX9' // NaN
Be careful when checking against NaN (the operator === and !== don't work as expected with NaN). Use:
isNaN(maybeNumber) // returns true if NaN, otherwise false
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Can't connect to local MySQL server through socket '/tmp/mysql.sock
...cal/mysql/support-files/mysql.server start
This worked for me. However, if this doesnt work then make sure that mysqld is running and try connecting.
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How to check if a column exists in a SQL Server table?
I need to add a specific column if it does not exist. I have something like the following, but it always returns false:
31 ...
Is there an MD5 Fixed Point where md5(x) == x?
...so have to be 128 bits long. Assuming that the MD5 sum of any string is uniformly distributed over all possible sums, then the probability that any given 128-bit string is a fixed point is 1/2128.
Thus, the probability that no 128-bit string is a fixed point is (1 − 1/2128)2128, so the probabili...
How to find if an array contains a specific string in JavaScript/jQuery? [duplicate]
Can someone tell me how to detect if "specialword" appears in an array? Example:
5 Answers
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How to split a string in shell and get the last field
...). How do I do that using Bash? I tried cut , but I don't know how to specify the last field with -f .
17 Answers
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How to determine whether a Pandas Column contains a particular value
...y in a Pandas column that has a particular value. I tried to do this with if x in df['id'] . I thought this was working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data frame only containing entries matching the missi...