change approach again

node_modules/find-replace/lib/find-replace.js

@@ -0,0 +1,62 @@
+'use strict'
+var arrayify = require('array-back')
+var testValue = require('test-value')
+
+/**
+ * Find and either replace or remove items from an array.
+ *
+ * @module find-replace
+ * @example
+ * > findReplace = require('find-replace')
+ *
+ * > findReplace([ 1, 2, 3], 2, 'two')
+ * [ 1, 'two', 3 ]
+ *
+ * > findReplace([ 1, 2, 3], 2, [ 'two', 'zwei' ])
+ * [ 1, [ 'two', 'zwei' ], 3 ]
+ *
+ * > findReplace([ 1, 2, 3], 2, 'two', 'zwei')
+ * [ 1, 'two', 'zwei', 3 ]
+ *
+ * > findReplace([ 1, 2, 3], 2) // no replacement, so remove
+ * [ 1, 3 ]
+ */
+module.exports = findReplace
+
+/**
+ * @param {array} - the input array
+ * @param {valueTest} - a [test-value](https://github.com/75lb/test-value) query to match the value you're looking for
+ * @param [replaceWith] {...any} - If specified, found values will be replaced with these values, else  removed.
+ * @returns {array}
+ * @alias module:find-replace
+ */
+function findReplace (array, valueTest) {
+  var found = []
+  var replaceWiths = arrayify(arguments)
+  replaceWiths.splice(0, 2)
+
+  arrayify(array).forEach(function (value, index) {
+    var expanded = []
+    replaceWiths.forEach(function (replaceWith) {
+      if (typeof replaceWith === 'function') {
+        expanded = expanded.concat(replaceWith(value))
+      } else {
+        expanded.push(replaceWith)
+      }
+    })
+
+    if (testValue(value, valueTest)) {
+      found.push({
+        index: index,
+        replaceWithValue: expanded
+      })
+    }
+  })
+
+  found.reverse().forEach(function (item) {
+    var spliceArgs = [ item.index, 1 ].concat(item.replaceWithValue)
+    array.splice.apply(array, spliceArgs)
+  })
+
+  return array
+}