How to Compare if two Maps are Equal in Golang
Testing the equivalence of maps in Go.
reflect.DeepEqual Function
It first checks if both maps are nil, then it checks if they have the same length before finally checking to see if they have the same set of (key, value) pairs.
package main
impo...
How to sort a vector in Rust
In Rust, there are 2 ways to sort a vector.
Using sort Method
The sort(&mut self) method sorts the slice. This sort is stable (i.e., does not reorder equal elements) and O(n * log(n)) worst-case. For example,
fn main() {
let mut v = [3, -5, ...
How to Do Case Insensitive String Comparison in Python
In Python, there are 2 do case insensitive string comparison.
Using casefold Method
The str.casefold() method returns a casefolded copy of the string. Casefolded strings may be used for caseless matching. For example,
#!/usr/bin/python3
a = "H...
How to Check the Equality of two Slices in Go
In Golang, there are 3 ways to check the equality of two slices.
Using bytes.Equal Function
Equal reports whether a and b are the same length and contain the same bytes. A nil argument is equivalent to an empty slice.
For example,
package main...
How to find the intersection between two lists in Python
In Python, there are 4 ways to find the intersection between two lists.
Using Set Intersection
A set is an unordered collection with no duplicate elements. Basic uses include membership testing and eliminating duplicate entries. Set objects also sup...
How to find the difference between two lists in Python
In Python, there are 5 ways to find the difference between two lists.
Using Set Difference
A set is an unordered collection with no duplicate elements. Basic uses include membership testing and eliminating duplicate entries. Set objects also support...
How to find intersection of two slices in Go
Intersection set of golang slices.Using map cache
It's a best method for intersection two slice. Time complexity is too low. Time Complexity : O(m+n)
package main
import "fmt"
func intersection(a, b []string) ([]string, error) {
// uses empty s...
How to find the difference between two slices in Go
Comparing two slices in Go.Using map cache
Creates a slice of slice values not included in the other given slices. An implementation is shown in the section below.
package main
import "fmt"
// difference returns the elements in `a` that aren't in ...
How to handle If-modified-since header in PHP
Reduce Bandwidth Usage by Supporting If-Modified-Since in PHP.
If-Modified-Since
The If-Modified-Since request HTTP header makes the request conditional: the server sends back the requested resource, with a 200 status, only if it has been last modif...
How to convert interface to int64 in Go
Interface variable conversion in Golang.Type Assertion
To convert interface to int64 in Go, Using Type Assertion.
A type assertion provides access to an interface value's underlying concrete value.
package main
import "fmt"
// t := i.(T)
// t, ok ...
How to use the diff command in Linux
Compare FILES line by line.
You can use the diff command to show differences between two files, or each corresponding file in two directories. diff outputs differences between files line by line in any of several formats, selectable by command line o...
How to use the curl command in Linux
command line tool and library for transferring data with URLs.
cURL (pronounced 'curl') is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various network protocols. The name ...