What is a predicate in this tool?

A predicate is a condition used to evaluate each element, such as checking if a value is less than a number or if a string contains a substring.

Can I use this tool with arrays of mixed data types?

Yes, it works with arrays of any data type, but predicates like 'less-than' are designed for numeric comparisons, while others like 'string-contains' are for strings.

What happens if no elements are dropped?

If the predicate is false for the first element, no elements are dropped, and the original array is returned unchanged.

Is the original array modified?

No, the tool creates a new array with elements dropped, leaving the original input array intact.

How do I specify the compare value for string predicates?

Enter the string value in the 'Compare Value' field, such as 'abc' for 'string-contains' or a prefix for 'string-starts-with'.

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Data Processing

Drop While

Drop items from array while predicate is true using lodash _.dropWhile

Details

What this tool helps you do

This tool removes elements from the beginning of an array until the predicate returns false for the first time.

Features:

Multiple predicate types for flexible filtering
Support for numeric and string comparisons
Works with arrays of any data type
Uses lodash's _.dropWhile for reliable operation

Example:
Input: [1, 2, 3, 4, 5]
Predicate: Less than 3
Output: [3, 4, 5] (drops 1 and 2 because they are < 3)

Predicate Types:

less-than: Drop while value < n
greater-than: Drop while value > n
equals: Drop while value === n
not-equals: Drop while value !== n
string-contains: Drop while string contains substring
string-starts-with: Drop while string starts with prefix
string-ends-with: Drop while string ends with suffix
is-nullish: Drop while value is null/undefined
is-truthy: Drop while value is truthy
is-falsey: Drop while value is falsey

Execution

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Samples

Drop While

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