Input: nums = [-4,-1,0,3,10]
Output: [0,1,9,16,100]
Explanation: After squaring, the array becomes [16,1,0,9,100].
After sorting, it becomes [0,1,9,16,100].
//1-dimensional array 10
int array[] = new int[10];
//2-dimensional array 10x5
int array[][]= new int[10][5]; //
/*
| Or it can also be declared by setting some values |
| The dimensions of the array will be obtained |
| automatically by the compiler according to the declaration |
*/
int array[] = {1,2,3,4,5,6}; //---> new array[6]
//--- the value of array[0] is 1
// | the value of array[1] is 2
// ...
//--- the value of array[5] is 6
int array[][] = { {1,2,3,4},{5,6,7,8},{9,10,11,12} }; //---> array[3][4]
public Capture CamInput = new Capture();
public Image<bgr,> frame;
public Image<bgr,> render;
public byte[] ImageCapture;
frame = CamInput.QueryFrame();
pictureBox1.Image = frame.ToBitMap(pictureBox1.Width, pictureBox1.Height);
ImageCapture = frame.Bytes;
//The shift() method removes the first array element and "shifts" all other elements to a lower index.
const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.shift();
// The shift() method returns the value that was "shifted out": >> Banana
//if you find this answer is useful ,
//upvote ⇑⇑ , so can the others benefit also . @mohammad alshraideh ( ͡~ ͜ʖ ͡°)
//combine the name with the age from object javascript function challenges
const customerAndAge = (obj) => {
let array = [];
for (let key in obj) {
array.push(`Customer Name :${key} , Age :${obj[key]}`);
} return array;
};
//if you find this answer is useful ,
//upvote ⇑⇑ , so can the others benefit also . @mohammad alshraideh ( ͡~ ͜ʖ ͡°)
my_list = [-15, -26, 15, 1, 23, -64, 23, 76]
new_list = []
while my_list:
min = my_list[0]
for x in my_list:
if x < min:
min = x
new_list.append(min)
my_list.remove(min)
print(new_list)
// this is an array
var days = ["sunday","mondey","tuesday","wednesday"]
//here you can call arrays items using index number inside squar bracket
console.log(day[0])
console.log(day[1])
console.log(day[2])
//create an array:
let colors = ["red","blue","green"];
//you can loop through an array like this:
//For each color of the Array Colors
for (color of colors){
console.log(color);
}
//or you can loop through an array using the index:
for (var i = 0; i < colors.length; i++) {
console.log(colors[i]);
}
var colors = [ "red", "orange", "yellow", "green", "blue" ]; //Array
console.log(colors); //Should give the whole array
console.log(colors[0]); //should say "red"
console.log(colors[1]); //should say "orange"
console.log(colors[4]); //should say "blue"
colors[4] = "dark blue" //changes "blue" value to "dark blue"
console.log(colors[4]); //should say "dark blue"
//I hope this helped :)
// Match one d followed by one or more b's followed by one d
// Remember matched b's and the following d
// Ignore case
const myRe = /d(b+)(d)/i
const myArray = myRe.exec('cdbBdbsbz')
function smallestCommons(arr) {
const [min, max] = arr.sort((a, b) => a - b);
console.log([min])
const numberDivisors = max - min + 1;
console.log(numberDivisors)
// Largest possible value for SCM
let upperBound = 1;
for (let i = min; i <= max; i++) {
upperBound *= i;
}console.log(upperBound)
// Test all multiples of 'max'
for (let multiple = max; multiple <= upperBound; multiple += max) {
// Check if every value in range divides 'multiple'
let divisorCount = 0;
for (let i = min; i <= max; i++) {
// Count divisors
if (multiple % i === 0) {
divisorCount += 1;
}
}console.log(multiple)
if (divisorCount === numberDivisors) {
return multiple;
}
}
}
//An array is a list of thing, you can add as many things as you want
var food = ["cake", "apple", "Ice-Cream"]
//You can use Math.Random to pick a random number
//from one to the length of the array
var Number = [Math.floor(Math.random() * food.length)]; // get a random number
//then we can console.log the random word from the array
console.log(logammounts[woodloot])
//You can also create an array, then provide the elements:
Example
const food = [];
food[0]= "cake";
food[1]= "apple";
food[2]= "Ice-Cream";
//The unshift() method adds a new element to an array (at the beginning), and "unshifts" older elements:
const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.unshift("Lemon");
//The unshift() method returns the new array length : >> 5
/*if you find this answer is useful ,
upvote ⇑⇑ , so the others can benefit also . @mohammad alshraideh ( ͡~ ͜ʖ ͡°)*/
const collection = {
length: 0,
addElements: function(...elements) {
// obj.length will be incremented automatically
// every time an element is added.
// Returning what push returns; that is
// the new value of length property.
return [].push.call(this, ...elements);
},
removeElement: function() {
// obj.length will be decremented automatically
// every time an element is removed.
// Returning what pop returns; that is
// the removed element.
return [].pop.call(this);
}
}
collection.addElements(10, 20, 30);
console.log(collection.length); // 3
collection.removeElement();
console.log(collection.length); // 2
array (
0 =>
array (
'success' => 'Formulario enviado.',
'failed' => 'There was an error trying to submit form. Please try again later.',
'validation_failed' => 'One or more fields have an error. Please check and try again.',
'invalid_email' => 'The e-mail address entered is invalid.',
'empty_field' => 'The field is required.',
'password_mismatch' => 'Passwords don't match.',
'username_exists' => 'This username already taken.',
'email_exists' => 'This email address is already used.',
'sanitize_user' => 'Username contains not allowed characters.',
'empty_username' => 'Please set username.',
'empty_email' => 'Please set user email.',
'empty_password' => 'Please set user password.',
'already_logged_in' => 'You already logged in.',
'captcha_failed' => 'Captcha validation failed',
'internal_error' => 'Internal server error. Please try again later.',
'upload_max_files' => 'Maximum upload files limit is reached.',
'upload_max_size' => 'Upload max size exceeded.',
'upload_mime_types' => 'File type is not allowed.',
),
)
Define value for property 'groupId':
Define value for property 'artifactId':
[INFO] Using property: version = 1.0-SNAPSHOT
Define value for property 'package':
p=int(input());soni=list(map(int,input().split()))
fuh=[x for x in soni if x<0];aki=[x for x in soni if x>=0]
while(aki or fuh):
if fuh:print(fuh[0],end=" ");fuh=fuh[1:]
if aki:print(aki[0],end=" ");aki=aki[1:]
## Shallow
Real unit test (isolation, no children render)
### Simple shallow
Calls:
- constructor
- render
### Shallow + setProps
Calls:
- componentWillReceiveProps
- shouldComponentUpdate
- componentWillUpdate
- render
### Shallow + unmount
Calls:
- componentWillUnmount
### Mount
The only way to test componentDidMount and componentDidUpdate.
Full rendering including child components.
Requires a DOM (jsdom, domino).
More constly in execution time.
If react is included before JSDOM, it can require some tricks:
`require('fbjs/lib/ExecutionEnvironment').canUseDOM = true;`
### Simple mount
Calls:
- constructor
- render
- componentDidMount
### Mount + setProps
Calls:
- componentWillReceiveProps
- shouldComponentUpdate
- componentWillUpdate
- render
- componentDidUpdate
### Mount + unmount
Calls:
- componentWillUnmount
### Render
only calls render but renders all children.
So my rule of thumbs is:
- Always begin with shallow
- If componentDidMount or componentDidUpdate should be tested, use mount
- If you want to test component lifecycle and children behavior, use mount
- If you want to test children rendering with less overhead than mount and you are not interested in lifecycle methods, use render
There seems to be a very tiny use case for render. I like it because it seems snappier than requiring jsdom but as @ljharb said, we cannot really test React internals with this.
I wonder if it would be possible to emulate lifecycle methods with the render method just like shallow ?
I would really appreciate if you could give me the use cases you have for render internally or what use cases you have seen in the wild.
I'm also curious to know why shallow does not call componentDidUpdate.
Kudos goes to https://github.com/airbnb/enzyme/issues/465#issuecomment-227697726 this gist is basically a copy of the comment but I wanted to separate it from there as it includes a lot of general Enzyme information which is missing in the docs.
//create an array like so:
var colors = ["red"];
//can add an element to array like this:
colors.push("blue");
//loop through an array like this:
for (var i = 0; i < colors.length; i++) {
console.log(colors[i]);
}
//Rekey is receiving info about applicants for his startup company (as array of objects), containing first name, last name, age and technology they know. Rekey only cares about the full name and the technology if the applicant has more than one year of Ex
const cvFormatter = (arr) => {
let arr2 = [];
for (let i = 0; i < arr.length; i++) {
const e = arr[i];
if (e.lastName === null && e.yearsOfExperience > 1) {
arr2.push({ fullName: `${e.firstName}`, tech: `${e.tech}` });
} else if (e.yearsOfExperience > 1) {
arr2.push({ fullName: `${e.firstName} ${e.lastName}`, tech: `${e.tech}` });
} else continue;
} return arr2;
};
//if you find this answer is useful ,
//upvote ⇑⇑ , so can the others benefit also . @mohammad alshraideh ( ͡~ ͜ʖ ͡°)
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