test: refactor several parallel/test-timer tests

Change var to const/let. Simplify test-timers-uncaught-exception.

PR-URL: https://github.com/nodejs/node/pull/10524
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/test/parallel/test-timers-ordering.js b/test/parallel/test-timers-ordering.js
index 79b16338e6..853f80a66a 100644
--- a/test/parallel/test-timers-ordering.js
+++ b/test/parallel/test-timers-ordering.js
@@ -1,22 +1,22 @@
 'use strict';
 require('../common');
 const assert = require('assert');
-var Timer = process.binding('timer_wrap').Timer;
 
-var N = 30;
+const Timer = process.binding('timer_wrap').Timer;
+const N = 30;
 
-var last_i = 0;
-var last_ts = 0;
+let last_i = 0;
+let last_ts = 0;
 
-var f = function(i) {
+const f = function(i) {
   if (i <= N) {
     // check order
-    assert.equal(i, last_i + 1, 'order is broken: ' + i + ' != ' +
+    assert.strictEqual(i, last_i + 1, 'order is broken: ' + i + ' != ' +
                  last_i + ' + 1');
     last_i = i;
 
     // check that this iteration is fired at least 1ms later than the previous
-    var now = Timer.now();
+    const now = Timer.now();
     console.log(i, now);
     assert(now >= last_ts + 1,
            'current ts ' + now + ' < prev ts ' + last_ts + ' + 1');