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Programming & Software Q&A | CollectiveSolver
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Welcome to collectivesolver - Programming & Software Q&A with code examples. A website with trusted programming answers. All programs are tested and work.
Contact: aviboots(AT)netvision.net.il
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Recent questions tagged JAVASCRIPT
41,445
questions
53,992
answers
573
users
Recent questions tagged JAVASCRIPT
1
answer
56
views
How to check if a string can be constructed by using the letters of another string in JavaScript
asked
Jan 5
by
avibootz
javascript
javascript-string-constructed-letters-another-string
string-constructed-letters-another-string
1
answer
56
views
How to product of array except self (arr[i] is equal to the product of all the elements except arr[i]) in JavaScript
asked
Jan 3
by
avibootz
javascript
javascript-product-array-except-self-arr_i
product-array-except-self-arr_i
2
answers
72
views
How to convert days into human-readable years, months and days in JavaScript
asked
Dec 31, 2025
by
avibootz
javascript
javascript-days-to-human-readable-years-months-days
days-to-human-readable-years-months-days
1
answer
68
views
How to clear bits in the given range in JavaScript
asked
Dec 30, 2025
by
avibootz
javascript
javascript-clear-bits-given-range
clear-bits-given-range
1
answer
66
views
How to get the 4 least significant bits in a byte with JavaScript
asked
Dec 28, 2025
by
avibootz
javascript
javascript-get-4-least-significant-bits-byte
get-4-least-significant-bits-byte
1
answer
64
views
How to check whether a user string contains any forbidden words from a list in JavaScript
asked
Dec 27, 2025
by
avibootz
javascript
javascript-check-user-string-contains-forbidden-words
check-user-string-contains-forbidden-words
1
answer
62
views
How to convert URL Parameters to JSON in JavaScript
asked
Dec 24, 2025
by
avibootz
javascript
javascript-convert-url-parameters-json
convert-url-parameters-json
1
answer
72
views
How to check if the sum of two halves of a number is equal in JavaScript
asked
Dec 23, 2025
by
avibootz
javascript
javascript-sum-two-halves-number-equal
sum-two-halves-number-equal
1
answer
78
views
How to check if two halves of a number are equal in JavaScript
asked
Dec 22, 2025
by
avibootz
javascript
javascript-two-halves-number-equal
two-halves-number-equal
2
answers
99
views
How to check if two strings are isomorphic in JavaScript
asked
Dec 19, 2025
by
avibootz
javascript
javascript-check-two-strings-isomorphic
check-two-strings-isomorphic
1
answer
72
views
How to remove text between parentheses in a string using JavaScript
asked
Dec 18, 2025
by
avibootz
javascript
javascript-remove-text-between-parentheses-in-string
remove-text-between-parentheses-in-string
2
answers
100
views
How to convert JSON to ArrayBuffer in JavaScript
asked
Dec 16, 2025
by
avibootz
javascript
javascript-json-to-arraybuffer
json-to-arraybuffer
1
answer
81
views
How to calculate the area of a triangle using Heron’s formula in JavaScript
asked
Dec 14, 2025
by
avibootz
javascript
javascript-area-triangle-herons-formula
area-triangle-herons-formula
1
answer
79
views
How to get the number of the day from the beginning of the year to a given date in JavaScript
asked
Dec 13, 2025
by
avibootz
javascript
javascript-number-day-beginning-year
number-day-beginning-year
1
answer
72
views
How to get the beginning and end of the day in JavaScript
asked
Dec 12, 2025
by
avibootz
javascript
javascript-beginning-end-day
beginning-end-day
1
answer
93
views
How to find the missing number in an array containing numbers from 1 to n in O(1) time complexity with JavaScript
asked
Dec 10, 2025
by
avibootz
javascript
javascript-missing-number-array-o1-time-complexity
missing-number-array-o1-time-complexity
1
answer
63
views
How to convert Base64 to a JSON string in JavaScript
asked
Dec 7, 2025
by
avibootz
javascript
javascript-base64-to-json-string
base64-to-json-string
1
answer
57
views
How to pass a replacer function to JSON.stringify() to customize the serialization in JavaScript
asked
Dec 7, 2025
by
avibootz
javascript
javascript-replacer-function-json-stringify-customize-serialization
1
answer
71
views
How to define a custom toJSON() method on an object to control how it is serialized in JavaScript
asked
Dec 6, 2025
by
avibootz
javascript
javascript-custom-tojson-serialized-json
custom-tojson-serialized-json
1
answer
59
views
How to convert a class to JSON in JavaScript
asked
Dec 6, 2025
by
avibootz
javascript
javascript-class-to-json
class-to-json
1
answer
66
views
How to calculate time if we have the distance and speed (kilometers per hour) in JavaScript
asked
Dec 6, 2025
by
avibootz
javascript
javascript-calculate-time-distance-speed
calculate-time-distance-speed
1
answer
84
views
How to convert a Roman number to an integer in JavaScript
asked
Dec 3, 2025
by
avibootz
javascript
javascript-roman-integer
roman-integer
1
answer
87
views
How to format an array of strings in lines with maxWidth without breaking the words in JavaScript
asked
Dec 2, 2025
by
avibootz
javascript
javascript-format-array-strings-lines-maxwidth
format-array-strings-lines-maxwidth
1
answer
75
views
How to convert an integer to Roman numerals in JavaScript
asked
Dec 2, 2025
by
avibootz
javascript
javascript-integer-roman-numerals
integer-roman-numerals
1
answer
95
views
How to check if the last index of an array is reachable by jumping based on element values from index 0 in JavaScript
asked
Dec 1, 2025
by
avibootz
javascript
javascript-last-index-array-jumping-by-elements-value
last-index-array-jumping-by-elements-value
1
answer
52
views
How to find two prime numbers that, when concatenated, form another prime number in JavaScript
asked
Nov 28, 2025
by
avibootz
javascript
javascript-prime-concatenate
prime-concatenate
1
answer
73
views
How to generate an N-digit integer random number in JavaScript
asked
Nov 27, 2025
by
avibootz
javascript
javascript-n-digit-integer-random
n-digit-integer-random
1
answer
67
views
How to select random two digits from anywhere in a number with JavaScript
asked
Nov 26, 2025
by
avibootz
javascript
javascript-random-two-anywhere-digits
random-two-anywhere-digits
1
answer
82
views
How to select random two consecutive digits from a number in JavaScript
asked
Nov 26, 2025
by
avibootz
javascript
javascript-random-two-consecutive-digits
random-two-consecutive-digits
1
answer
72
views
How to convert a degree to a compass direction in JavaScript
asked
Nov 24, 2025
by
avibootz
javascript
javascript-degree-compass-direction
degree-compass-direction
1
answer
66
views
How to calculate the sum of all Fibonacci numbers between two left and right indices in JavaScript
asked
Nov 23, 2025
by
avibootz
javascript
javascript-sum-fibonacci-numbers
sum-fibonacci-numbers
1
answer
71
views
How to create an M x N matrix with random numbers in JavaScript
asked
Nov 22, 2025
by
avibootz
javascript
javascript-matrix-random-numbers
matrix-random-numbers
1
answer
80
views
How to generate all possible permutations and combinations of an array of chars in JavaScript
asked
Nov 21, 2025
by
avibootz
javascript
javascript-array-all-permutations-combinations
all-permutations-combinations
1
answer
74
views
How to find the first 4-digit prime number where all digits are unique in JavaScript
asked
Nov 21, 2025
by
avibootz
javascript
javascript-4-digit-prime-unique
4-digit-prime-unique
1
answer
72
views
How to generate all possible permutations of an array using recursion in JavaScript
asked
Nov 20, 2025
by
avibootz
javascript
javascript-permutations-array-recursion
permutations-array-recursion
1
answer
93
views
How to generate a random integer from a range [0, N] that is not in a unique integer list with JavaScript
asked
Nov 19, 2025
by
avibootz
javascript
javascript-random
javascript-random-excluding-list
random-excluding-list
1
answer
76
views
How to replace all occurrences of a specific digit in a floating-point number with JavaScript
asked
Nov 17, 2025
by
avibootz
javascript
cpp-replace-all-occurrences-digit-float
replace-all-occurrences-digit-float
1
answer
90
views
How to replace a digit in a floating-point number by index with JavaScript
asked
Nov 17, 2025
by
avibootz
javascript
javascript-replace-digit-float
replace-digit-float
1
answer
69
views
How to check whether each substring range (L to R) from an array of substring ranges is a palindrome in JavaScript
asked
Nov 16, 2025
by
avibootz
javascript
javascript-substring-range-palindrome
substring-range-palindrome
1
answer
91
views
How to get all the substrings with exactly k distinct characters from a given string in JavaScript
asked
Nov 14, 2025
by
avibootz
javascript
javascript-substring
javascript-string
substrings-with-k-distinct-characters
1
answer
70
views
How to convert an array of strings and group all the anagrams into subarrays in JavaScript
asked
Nov 13, 2025
by
avibootz
javascript
javascript-array-anagram
group-anagrams
1
answer
69
views
How to find the Kth smallest number in an unsorted array in JavaScript
asked
Nov 12, 2025
by
avibootz
javascript
javascript-find-array
1
answer
92
views
How to find a list of numbers up to a limit that is a palindrome in base 10 and base 2 in JavaScript
asked
Nov 11, 2025
by
avibootz
javascript
javascript-bouble-base-palindrome
1
answer
81
views
How to find all the numbers that are equal to the sum of the factorials of their digits in JavaScript
asked
Nov 9, 2025
by
avibootz
javascript
javascript-numbers
javascript-factorials
1
answer
83
views
How to find the numbers that are the sum of fifth powers of their digits in JavaScript
asked
Nov 9, 2025
by
avibootz
javascript
javascript-numbers
javascript-fifth-power
1
answer
70
views
How to find the floor and ceiling of the value N in an unsorted array with JavaScript
asked
Nov 8, 2025
by
avibootz
javascript
javascript-array
javascript-floor
javascript-ceil
1
answer
92
views
How to write a recursive function to generate all permutations of a string in JavaScript
asked
Nov 5, 2025
by
avibootz
javascript
javascript-recursion
2
answers
123
views
How to tell if Caps Lock is on in JavaScript
asked
Nov 4, 2025
by
avibootz
javascript
javascript-caps-lock-on-event
caps-lock-on-event
1
answer
94
views
How to set specific bits and find the set bits indexes in JavaScript
asked
Nov 3, 2025
by
avibootz
javascript
javascript-bits
1
answer
83
views
How to generate random floating point numbers in JavaScript
asked
Nov 2, 2025
by
avibootz
javascript
javascript-generate-random-floating-point-numbers
generate-random-floating-point-numbers
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