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Javascript 2022-03-17 07:35:13
8.3.1. Common Array Methods // join Examples (.join)
//The general syntax for this method is: arrayName.join('connector') /*join combines all the elements of an array into a string. The connector determines the string that "glues" the array elements together.*/ let arr = [1, 2, 3, 4]; let word... Add solution -
Javascript 2022-03-16 22:30:12
javascript loop through arrya
var data = [1, 2, 3, 4, 5, 6]; // traditional for loop for(let i=0; i<=data.length; i++) { console.log(data[i]) // 1 2 3 4 5 6 } // using for...of for(let i of data) { console.log(i) // 1 2 3 4 5 6 } // using for...in for(let i in data) { con... Add solution -
Other 2022-03-14 13:45:06
mongodb update field inside array
Consider the following document in the students collection whose grades element value is an array of embedded documents: { _id: 4, grades: [ { grade: 80, mean: 75, std: 8 }, { grade: 85, mean: 90, std: 5 }, { grade: 85, mean: 85, std: ... Add solution -
Python 2022-03-02 21:10:02
array storing in file by python
# long arrays can be stored in csv files far more efficiently import numpy as np import csv # uploading arrays in a csv file arr1 = [i for i in range(500)] arr2 = [i for i in range(1000)] arr3 = [i for i in range(2000)] # you can write('w') or append('a'... Add solution -
Javascript 2022-02-16 18:35:08
loop through an array in js
var data = [1, 2, 3, 4, 5, 6]; // traditional for loop for(let i=0; i<=data.length; i++) { console.log(data[i]) // 1 2 3 4 5 6 } // using for...of for(let i of data) { console.log(i) // 1 2 3 4 5 6 } // using for...in for(let i in data) { con... Add solution -
C++ 2022-02-12 03:45:02
how to search integer in c++
//******************************************************** // search algorithm for arrays //******************************************************** #include <iostream> using namespace std; void initializeArray(int list[], int listSize); int ... Add solution -
Javascript 2022-02-06 16:10:31
.index of javascript
//indexOf getting index of array element, returns -1 if not found var colors=["red","green","blue"]; var pos=colors.indexOf("blue");//2 //indexOf getting index of sub string, returns -1 if not found var str = "... Add solution