Javascript First Letter Uppercase

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There are many beginner code challenges that will help you start to think more like an engineer. One such challenge is where you capitalize the first letter of every word in a given string. In this article, we’ll take a look at the prompt and several possible solutions in JavaScript.

Given a function, capitalize, which includes str as a parameter, return that str with each word capitalized. Try to think of peak cases in your solution (not as input, wrong type of input, etc.).

Approach

  1. Take a look again at the prompt. Write down or highlight any keywords you can find in the wording.
  2. Combine the meaning of the word problem. Part of the hardest part of doing code challenges is trying to figure out what the problem is asking you to do. Understanding the problem will help you go a long way in solving it.
  3. a possible pseudocode solution. It doesn’t have to be the actual code (it doesn’t need to be executable in your IDE or console browser - simple English is fine):

Solve the problem carefully step by step. It will help you think of tip cases - cases where an incorrect entry or an empty string may be passed - and how to break the problem down into logical steps. This is basically your experimentation phase - there are no wrong answers, just thoughts of how to approach the problem. These thoughts can be misleading or misguided - this is how you learn about won approaches to solving a problem

I have found that if I can break it down by explaining aloud, the logic is easier. Your mileage may vary depending on your approach, but I wanted to at least suggest in case it works for you! The nickname for a little problem like this seems like a little overkill, but if you practice the concept now it will be easier for you when working on much more difficult problems.

The solutions

Solution # 1: split () and loop with String.replace () and charAt () methods

leave = capitalize (str) => {= stop leave str.split (’’); for (either i = 0; i

In this first solution, we divide the string on its spaces. This gives us an arr each unique word as its index. The loop on the array gives us the possibility to access the personal indices of each string. We reassigned the string (the string in this case is arr [i]) to index i as a result of replacing the string at index 0 (arr [i] .charAt (0) with its value in uppercase. Arr in a string with spaces between each of the words

Solution # 2: split with the map method and slice

In this solution we start in a very similar way, but we use an ES6 array method called loop card through the network and the return of new values ‚Äã‚Äãthat capitalize the first character of each word. It does this by explicitly setting out what we’ll do with the toUpperCase () for the first letter, the slice () for the rest of the string, and the strings concatenate for get the new version of the word. Then we merge the array and return it

Solution n ° 3: regular expressions

allow leverage = (str) => {let regex = / (^ | s) S / g return str.replace (regex, letter => letter.toUpperCase ()); } Leave root = document.getElementById (’root’); root.innerHTML = JSON.stringify (capitalize (quick brown fox jumped on lazy dog ‚Äã‚Äã’));

In this solution, we use a regular expression to find all non-white characters (S) at the start of the string (^ ) or after a space character (s). The indicator g at the end means global and allows us to find all instances of this model. Then we use the replace method to replace that regex pattern with a function that takes that letter and returns it in uppercase.

final thoughts

These solutions are by no means the only solutions to this problem .. Most likely, as you start doing more of these, you are going to find solutions that can or may not be different from those presented by an article or blog. This is a good thing. It means you start to think like an engineer - and that’s the point.

Continue. In these solutions, peak cases are not addressed. What should you do if your subject is empty or is it a number? Try adding to the above code by dealing with these borderline cases

Tip :. Use a period / bang exclamation to conditionally find if str exists. Check out the MDN docs to find out if there is a way to find out the type of something when you don’t necessarily know what it is.

one thing : try reverse javascript challenge strings if you haven’t already

Other resources to consider:

Using regular expressions in Ruby - This is dedicated to Ruby, but regular expression is often language independent - quick ’ Look for more about RegExp syntax in Solution # 1. 3.

JavaScript Replace Text: A Step by Step Guide - A tutorial dedicated to the replacement method, used in solution n. 1.

👻 Read also: what is the best laptop for engineering students?

Javascript First Letter Uppercase __del__: Questions

How can I make a time delay in Python?

5 answers

I would like to know how to put a time delay in a Python script.

2973

Answer #1

import time
time.sleep(5)   # Delays for 5 seconds. You can also use a float value.

Here is another example where something is run approximately once a minute:

import time
while True:
    print("This prints once a minute.")
    time.sleep(60) # Delay for 1 minute (60 seconds).

2973

Answer #2

You can use the sleep() function in the time module. It can take a float argument for sub-second resolution.

from time import sleep
sleep(0.1) # Time in seconds

Javascript First Letter Uppercase __del__: Questions

How to delete a file or folder in Python?

5 answers

How do I delete a file or folder in Python?

2639

Answer #1


Path objects from the Python 3.4+ pathlib module also expose these instance methods:

We hope this article has helped you to resolve the problem. Apart from Javascript First Letter Uppercase, check other __del__-related topics.

Want to excel in Python? See our review of the best Python online courses 2023. If you are interested in Data Science, check also how to learn programming in R.

By the way, this material is also available in other languages:



Davies Chamberlet

California | 2023-02-09

os Python module is always a bit confusing 😭 Javascript First Letter Uppercase is not the only problem I encountered. Checked yesterday, it works!

Boris Krasiko

California | 2023-02-09

Simply put and clear. Thank you for sharing. Javascript First Letter Uppercase and other issues with join was always my weak point 😁. Will get back tomorrow with feedback

Javier Sikorski

Milan | 2023-02-09

Ev PHP module is always a bit confusing 😭 Javascript First Letter Uppercase is not the only problem I encountered. I just hope that will not emerge anymore

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