52 lines
1.3 KiB
TypeScript
52 lines
1.3 KiB
TypeScript
function isBuffer(obj: any): boolean {
|
|
return (
|
|
obj &&
|
|
obj.constructor &&
|
|
typeof obj.constructor.isBuffer === "function" &&
|
|
obj.constructor.isBuffer(obj)
|
|
);
|
|
}
|
|
/*
|
|
Forked from https://github.com/hughsk/flat
|
|
*/
|
|
export function flatten(target: any, opts: any = {}): any[] {
|
|
opts = opts || {};
|
|
|
|
const delimiter = opts.delimiter || ".";
|
|
const maxDepth = opts.maxDepth;
|
|
const transformKey =
|
|
opts.transformKey || ((key: any) => (isNaN(parseInt(key)) ? key : ""));
|
|
const output: any[] = [];
|
|
|
|
function step(object: any, prev?: any, currentDepth?: any) {
|
|
currentDepth = currentDepth || 1;
|
|
Object.keys(object).forEach(function (key) {
|
|
const value = object[key];
|
|
const isarray = opts.safe && Array.isArray(value);
|
|
const type = Object.prototype.toString.call(value);
|
|
const isbuffer = isBuffer(value);
|
|
const isobject = type === "[object Object]" || type === "[object Array]";
|
|
|
|
const newKey = prev
|
|
? prev + delimiter + transformKey(key)
|
|
: transformKey(key);
|
|
|
|
if (
|
|
!isarray &&
|
|
!isbuffer &&
|
|
isobject &&
|
|
Object.keys(value).length &&
|
|
(!opts.maxDepth || currentDepth < maxDepth)
|
|
) {
|
|
return step(value, newKey, currentDepth + 1);
|
|
}
|
|
|
|
output.push(`${newKey}=${value}`);
|
|
});
|
|
}
|
|
|
|
step(target);
|
|
|
|
return output;
|
|
}
|