I am iterating through objects of font data and want to push or add their postscript name and style as a key/value pair. The postscript name will always be the regular version of the postscript so I need to keep track of the style with it. For example, I want my data structure to look like:
[
{ "Arial-MT", "Bold" },
{ "Arial-MT", "Regular"}
]
While iterating though, if I come across another postscript_name that is Arial-MT and style of either Bold or Regular, I don't want to add it to my data object. What is the cleanest approach to this?
Use an object containing Sets of strings.
const styles = {
"Ariel-MT": new Set(["Bold", "Regular"])
};
postscript_data.forEach(([postscript_name, postscript_style]) => {
if (styles[postscript_name]) {
styles[postscript_name].add(postscript_style);
} else {
style[postscript_name] = new Set([postscript_style])
}
});
I've correct the data structure you provide as an array of objects:
const data = [
{ "Arial-MT": "Bold" },
{ "Arial-MT": "Regular"},
{ "Arial-MT": "Bold" },
{ "Arial-MT": "Regular"},
];
let visited = [];
let result = [];
for(const obj of data){
const [k,v] = Object.entries(obj)[0];
if(!visited.includes(`${k}_${v}`)){
const new_obj = {}
new_obj[k] = v;
result.push(new_obj);
visited.push(`${k}_${v}`);
}
}
console.log(result)