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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
41,683
questions
54,351
answers
573
users
Recent questions tagged JAVASCRIPT
1
answer
60
views
How to merge overlapping ranges (start,end),(start,end) in JavaScript
asked
Jan 26
by
avibootz
javascript
javascript-merge-overlapping-ranges
merge-overlapping-ranges
1
answer
55
views
How to merge two strings based on shared suffix and prefix in JavaScript
asked
Jan 24
by
avibootz
javascript
javascript-merge-two-strings
merge-two-strings-based-on-shared-suffix-and-prefix
1
answer
59
views
How to sort by strings a mixed pair of string and number elements in an array with JavaScript
asked
Jan 23
by
avibootz
javascript
javascript-sort-array
sort-by-strings-mixed-pair-of-string-number-elements-in-array
1
answer
55
views
How to sort by numbers a mixed pair of string and number elements in an array with JavaScript
asked
Jan 23
by
avibootz
javascript
javascript-sort-array
sort-by-numbers-mixed-pair-of-string-number-elements-in-array
2
answers
77
views
How to check if a string is IPv4 or IPv6 or invalid in JavaScript
asked
Jan 19
by
avibootz
javascript
javascript-check-if-string-is-ipv4-or-ipv6-or-invalid
check-if-string-is-ipv4-or-ipv6-or-invalid
1
answer
74
views
How to print a calendar for a specific month and year in JavaScript
asked
Jan 18
by
avibootz
javascript
javascript-print-calendar-for-specific-month-and-year
print-calendar-for-specific-month-and-year
1
answer
71
views
How to print the calendar for a specific year in JavaScript
asked
Jan 17
by
avibootz
javascript
javascript-print-calendar-for-specific-year
print-calendar-for-specific-year
1
answer
68
views
How to group words by first letter in JavaScript
asked
Jan 16
by
avibootz
javascript
javascript-group-words-by-first-letter
group-words-by-first-letter
1
answer
62
views
How to find the volume of a capsule in JavaScript
asked
Jan 12
by
avibootz
javascript
javascript-find-volume-of-capsule
find-volume-of-capsule
1
answer
64
views
How to implement ternary search to find a value in a sorted list with JavaScript
asked
Jan 12
by
avibootz
javascript
javascript-implement-ternary-search-to-find-value-in-sorted-array
implement-ternary-search-to-find-value-in-sorted-array
1
answer
68
views
How to convert a character (flatten) matrix to a single string in JavaScript
asked
Jan 10
by
avibootz
javascript
javascript-convert-character-matrix-to-single-string
convert-character-matrix-to-single-string
flatten_char_matrix
1
answer
56
views
How to convert a matrix of numbers to a string in JavaScript
asked
Jan 9
by
avibootz
javascript
javascript-convert-matrix-numbers-to-string
convert-matrix-numbers-to-string
1
answer
67
views
How to check if each letter in a string maps to the first letter of a word in another string with JavaScript
asked
Jan 6
by
avibootz
javascript
javascript-each-letter-string-maps-first-letter-word-another-string
each-letter-string-maps-first-letter-word-another-string
1
answer
62
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
58
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
74
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
71
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
69
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
68
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
66
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
76
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
81
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
109
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
78
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
110
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
88
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
83
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
76
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
97
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
72
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
58
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
75
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
61
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
71
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
86
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
89
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
79
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
103
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
54
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
75
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
68
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
84
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
77
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
73
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
74
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
84
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
75
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
75
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
101
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
80
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
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