node_modules

node_modules/argparse/examples/sum.js

@@ -0,0 +1,35 @@
+#!/usr/bin/env node
+
+'use strict';
+
+
+var ArgumentParser  = require('../lib/argparse').ArgumentParser;
+var parser = new ArgumentParser({ description: 'Process some integers.' });
+
+
+function sum(arr) {
+  return arr.reduce(function (a, b) {
+    return a + b;
+  }, 0);
+}
+function max(arr) {
+  return Math.max.apply(Math, arr);
+}
+
+
+parser.addArgument(['integers'], {
+  metavar:      'N',
+  type:         'int',
+  nargs:        '+',
+  help:         'an integer for the accumulator'
+});
+parser.addArgument(['--sum'], {
+  dest:         'accumulate',
+  action:       'storeConst',
+  constant:     sum,
+  defaultValue: max,
+  help:         'sum the integers (default: find the max)'
+});
+
+var args = parser.parseArgs('--sum 1 2 -1'.split(' '));
+console.log(args.accumulate(args.integers));