1594222567
Like any kind of apps, there are difficult issues to solve when we write JavaScript apps.
In this article, we’ll look at some solutions to common JavaScript problems.
JSON.strignify
and JSON.parse
do different things.
JSON.stringify
converts an object into a JSON string.
JSON.parse
parse a JSON string into an object.
For instance, we can use JSON.stringify
by writing;
const obj = { foo: 1, bar: 2 };
const str = JSON.stringify(obj);
str
is the stringified version of obj
.
We can use JSON.parse
by writing:
const obj = JSON.parse(str);
If str
is a valid JSON string, then it’ll be parsed into an object.
If our string have accents or diacritics in a string, we can remove it by using the normalize
method.
For instance, we can write:
const str = "garçon"
const newStr = str.normalize("NFD").replace(/[\u0300-\u036f]/g, "")
Then newStr
is “garcon”
.
NFD
means the Unicode normal form.
It decomposes the combined graphemes into the combination of simpler ones.
Therefore the ç
is decomposed into the letter and the diacritic.
Then we used replace
to remove all the accent characters.
We’ll get the ‘unexpected token o’ error if the thing that we’re trying to parse is already an object.
Therefore, we should make sure that we aren’t parsing a JSON object.
#web-development #programming #technology #javascript #software-development
1619518440
Welcome to my Blog , In this article, you are going to learn the top 10 python tips and tricks.
…
#python #python hacks tricks #python learning tips #python programming tricks #python tips #python tips and tricks #python tips and tricks advanced #python tips and tricks for beginners #python tips tricks and techniques #python tutorial #tips and tricks in python #tips to learn python #top 30 python tips and tricks for beginners
1625637060
In this video, we work with JSONs, which are a common data format for most web services (i.e. APIs). Thank you for watching and happy coding!
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What is an API?
https://youtu.be/T74OdSCBJfw
JSON Google Extension
https://chrome.google.com/webstore/detail/json-formatter/bcjindcccaagfpapjjmafapmmgkkhgoa?hl=en
Endpoint Example
http://maps.googleapis.com/maps/api/geocode/json?address=13+East+60th+Street+New+York,+NY
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#jsons #json arrays #json objects #what is json #jsons tutorial #blondiebytes
1599654360
As you can see, the user interface includes the surrounding month and date options in addition to the selected date. This means that I need to not only keep track of the current date, but I also need a way to conveniently figure out how many days are in the selected month and which months come before and after that selected month.
When I first looked at this design, I thought I was going to have to write a bunch of helper functions for this. But I didn’t have a lot of time, so I decided to see what JavaScript’s Date
object could do for me in this situation.
It turns out, the Date
object is well suited to solve this problem. I started out by just playing around with it in my browser console. I was surprised to find that the Date
object’s constructor method behaves in exactly the way I needed it to in order to easily get the required information.
The constructor method can be used in a few different ways. For this task, I created a date like so:
new Date(year, monthIndex, day)
The monthIndex
is the month’s order number starting from 0
instead of 1
.
To make it easier on myself, I created a hook and some setter functions to create new Date
objects each time the date changed:
const dateObj = new Date(2000, 0, 1);
const [date, setDate] = useState(dateObj);
const setMonth = month => {
const newDate = new Date(
date.getFullYear(),
month,
date.getDate()
);
setDate(newDate);
};
const setDay = day => {
const newDate = new Date(
date.getFullYear(),
date.getMonth(),
day
);
setDate(newDate);
};
const setYear = year => {
const newDate = new Date(
year,
date.getMonth(),
date.getDate()
);
setDate(newDate);
};
#programming #javascript-development #programming-tips #javascript #javascript-tips
1589255577
As a JavaScript developer of any level, you need to understand its foundational concepts and some of the new ideas that help us developing code. In this article, we are going to review 16 basic concepts. So without further ado, let’s get to it.
#javascript-interview #javascript-development #javascript-fundamental #javascript #javascript-tips
1594222567
Like any kind of apps, there are difficult issues to solve when we write JavaScript apps.
In this article, we’ll look at some solutions to common JavaScript problems.
JSON.strignify
and JSON.parse
do different things.
JSON.stringify
converts an object into a JSON string.
JSON.parse
parse a JSON string into an object.
For instance, we can use JSON.stringify
by writing;
const obj = { foo: 1, bar: 2 };
const str = JSON.stringify(obj);
str
is the stringified version of obj
.
We can use JSON.parse
by writing:
const obj = JSON.parse(str);
If str
is a valid JSON string, then it’ll be parsed into an object.
If our string have accents or diacritics in a string, we can remove it by using the normalize
method.
For instance, we can write:
const str = "garçon"
const newStr = str.normalize("NFD").replace(/[\u0300-\u036f]/g, "")
Then newStr
is “garcon”
.
NFD
means the Unicode normal form.
It decomposes the combined graphemes into the combination of simpler ones.
Therefore the ç
is decomposed into the letter and the diacritic.
Then we used replace
to remove all the accent characters.
We’ll get the ‘unexpected token o’ error if the thing that we’re trying to parse is already an object.
Therefore, we should make sure that we aren’t parsing a JSON object.
#web-development #programming #technology #javascript #software-development