Recently, I came across a code snippet that is new to me and I'm having trouble finding an explanation for it online:
function segColor(c) {
return {
red: "#FF0000",
green: "#00ff00",
blue: "#0000ff"
}[c];
}
I'm curious about the operation being performed on the function parameter c. Can someone explain what {array}[val] does in JavaScript? My searches for "brackets after braces" haven't turned up much information.
In this code snippet, the variable c is used as a property accessor to the object. The function segColor serves as a static mapper that returns the corresponding color value based on the input color word.
function segColor(c) {
return {
red: "#FF0000",
green: "#00ff00",
blue: "#0000ff"
}[c];
}
console.log(segColor('green'));
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