How to get the Screen Width in Javascript
Javascript gives a few options to determine the screen width.
When we say screen, we mean the browser window’s width itself.
Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How to Read a File in Rust
If you need to read a file in Rust, then you can use the fs package from the standard library:
use std::fs;
fn main() {
let contents = …How to Convert Array to String in Java
If you need to convert an array to a string in Java, then you could look at a solution like this:
String stringArray[] = {"Hello ", " …How to Join Two Strings Together in Golang
If you need to join two (2) strings together in Golang, you can do the following, using the + concatenation operator:
package main
import ( …How to Recursively Delete all Files in an AWS S3 Bucket
If you need to recursively delete all files in an AWS S3 bucket, then you can do the following:
aws s3 rm --recursive s3://your-bucket-name/foo/bar/ …How to Execute Linux Commands in Golang
If you want to execute Linux commands in Golang, you can use exec.Command from the os/exec package:
cmd := exec.Command("echo", "hello …How to Check for Prime Numbers using Golang
If you need to check for Prime Numbers in Golang, then you can use the following method:
const n = 1212121
if big.NewInt(n).ProbablyPrime(0) { …How to Raise a Number to a Power in Golang
If you need to raise a number to a power in Golang, then you can use the math.Pow function:
package main
import (
"math"
)
func …How to get CPU Frequency in Linux
If you need to get the CPU frequency in Linux, you can run the following command:
watch -n.1 "grep \"^[c]pu MHz\" /proc/cpuinfo"
This …
Read Article →How to Disable Warning with Python Pandas
How can python pandas disable warnings?
If you need to disable warnings with Pandas on Python, then you can use the warnings module and ignore the …
How to Get all Caps Alphabet as List in Python
If we take the following list:
['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', …[Solved] Error creating RDS DB Instance: IAM role ARN value is not value or does not include the required permissions for: ENHANCED_MONITORING
When you are trying to create an RDS database and you get the dreaded error message:
IAM role ARN value is invalid or does not include the required …
How to create an AWS Lambda in Terraform
Step 1 – Lambda Code in Python
The following code expects a python file with the contents as follows in a file called python/script1.py:
def …[Solved] Instance Profile already exists in Terraform
If you get the Instance Profile already exists error when running your Terraform apply, then it is either because an instance profile with that name …
[Solved] An error occurred (UnauthorizedException) when calling ListAccounts operation: Session token not found or invalid
If you are using aws configure sso to populate your ~/.aws/credentials file and you get the following error when you try and reauthorize, then you can …
How to Match Multiple Strings with grep
If you need to match a string in a file, then grep is your friend.
An example of using grep
Let’s take a file called somefile.txt
this
is
a
test …How to Invoke an AWS Lambda from the CLI
If you want to invoke an AWS Lambda from your CLI, then the best option is to have the AWS CLI installed.
Getting started with the AWS CLI – AWS …
Read Article →How to Exit if a Bash Variable in Not Set
Sometimes you might want to exit a command if a variable is not set in Bash.
You can do this as follows:
if [ -z "$VARIABLE_NAME" ]; then echo …How to Force Gitlab pipeline to fail on condition
if you have a conditional in your Gitlab pipeline stage that checks if something has succeeded or failed, then you can use this to pass or fail your …
Read Article →How to run AWS CLI commands based on AWS CLI Version in Bash
If you find yourself having the requirements to support both AWS CLI v1 and v2 simultaneously, then you can use the following conditional in Bash to …
Read Article →[Solved] Unknown options: –cli-binary-format AWS CLI
If you have tried calling the AWS CLI and got the following error:
Unknown options: --cli-binary-format
Then it is because you are using the AWS CLI …
How to Generate Random Strings with Dash in-between in Python
If you need to generate a random string that looks something like this: VUNBXJ-230411, then you can use the following random generator:
import random, …How to Check OS version and flavor in Linux
If you need to check the version and flavour of the running Linux instance, then you can try the below commands:
cat /etc/os-release
lsb_release -a …How to use a Backend-Config File for Terraform S3 State Configuration
If you are using S3 as the backend for your state management in Terraform, then you can create environment specific configuration files where you …
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