@covalent/echarts
Version:
Teradata UI Platform Echarts Module
25 lines • 2.82 kB
JavaScript
export function assignDefined(target, ...sources) {
const keys = new Set();
for (const source of sources) {
for (const key of Object.keys(source)) {
keys.add(key);
const val = source[key];
/* tslint:disable-next-line */
if (val !== undefined && val !== null) {
target[key] = val;
/* tslint:disable-next-line */
}
else if (val === null) {
delete target[key];
}
}
}
// delete keys that are not in any source
for (const key of Object.keys(target)) {
if (!keys.has(key)) {
delete target[key];
}
}
return target;
}
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