ladders!

src/misc.js

@@ -129,3 +129,8 @@ export function pairPrice(baseToken, quoteToken, price, decimals=null) {
 
 export const sleep = ms => new Promise(r => setTimeout(r, ms))
 
+export function builderDefaults(builder, defaults) {
+    for (const k in defaults)
+        if (builder[k] === undefined)
+            builder[k] = defaults[k] instanceof Function ? defaults[k]() : defaults[k]
+}