target ever second word in a string using map function - PeakU

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target ever second word in a string using map function

Apply the map() function to the variable str so that every second word in the string is converted to uppercase. in javascript.

str = "hello my name is jon and i live in. canada."

about 4 years ago · Juan Pablo Isaza

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"hello my name is jon and i live in. canada."
    .split(" ")
    .map((word, idx) => idx % 2 === 0 ? word : word.toUpperCase())
    .join(" ")

The trick is:

Split by spaces.
Map with index, but only use toUpperCase() if idx % 2 !== 0.
Then join back with spaces.

about 4 years ago · Juan Pablo Isaza Report

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