Method 1: Ternary Operators and Filter Method
This method takes advantage of JavaScript's ternary operators and the filter method of arrays. An element is added to the array conditionally using a ternary operator and the resulting array is filtered to exclude any null values.
Here's a sample code snippet:
_10let item1 = 'value1'_10let item2 = 'value2'_10let item3 = 'value3'_10_10let condition1 = item1 && item2_10let condition2 = item2 && item3_10_10let array = [condition1 ? item1 : null, item2, condition2 ? item3 : null].filter(_10 (item) => item !== null,_10)
Method 2: Spread Syntax
This approach uses JavaScript's spread syntax (...).
It's more concise and doesn't require additional filtering.
If the condition is true, an array item gets included.
If the condition is false, an empty array gets spread, which effectively includes no extra elements.
Here's a sample code snippet:
_10let item1 = 'value1'_10let item2 = 'value2'_10let item3 = 'value3'_10_10let condition1 = item1 && item2_10let condition2 = item2 && item3_10_10let array = [...(condition1 ? [item1] : []), item2, ...(condition2 ? [item3] : [])]