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Replace var with let and const #25

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Replace var with let and const #25

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40 changes: 20 additions & 20 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -101,24 +101,24 @@ The primary export of `check-error` is an object which has the following methods
* `getMessage(err)` - Retrieves the message of an error or `err` itself if it's a String. If `err` or `err.message` is undefined we return an empty String.

```js
var checkError = require('check-error');
const checkError = require('check-error');
```

#### .compatibleInstance(err, errorLike)

```js
var checkError = require('check-error');
const checkError = require('check-error');

var funcThatThrows = function() { throw new TypeError('I am a TypeError') };
var caughtErr;
const funcThatThrows = function() { throw new TypeError('I am a TypeError') };
let caughtErr;

try {
funcThatThrows();
} catch(e) {
caughtErr = e;
}

var sameInstance = caughtErr;
let sameInstance = caughtErr;

checkError.compatibleInstance(caughtErr, sameInstance); // true
checkError.compatibleInstance(caughtErr, new TypeError('Another error')); // false
Expand All @@ -127,10 +127,10 @@ checkError.compatibleInstance(caughtErr, new TypeError('Another error')); // fal
#### .compatibleConstructor(err, errorLike)

```js
var checkError = require('check-error');
const checkError = require('check-error');

var funcThatThrows = function() { throw new TypeError('I am a TypeError') };
var caughtErr;
const funcThatThrows = function() { throw new TypeError('I am a TypeError') };
let caughtErr;

try {
funcThatThrows();
Expand All @@ -146,18 +146,18 @@ checkError.compatibleConstructor(caughtErr, RangeError); // false
#### .compatibleMessage(err, errMatcher)

```js
var checkError = require('check-error');
const checkError = require('check-error');

var funcThatThrows = function() { throw new TypeError('I am a TypeError') };
var caughtErr;
const funcThatThrows = function() { throw new TypeError('I am a TypeError') };
let caughtErr;

try {
funcThatThrows();
} catch(e) {
caughtErr = e;
}

var sameInstance = caughtErr;
let sameInstance = caughtErr;

checkError.compatibleMessage(caughtErr, /TypeError$/); // true
checkError.compatibleMessage(caughtErr, 'I am a'); // true
Expand All @@ -168,37 +168,37 @@ checkError.compatibleMessage(caughtErr, 'I do not exist'); // false
#### .getConstructorName(errorLike)

```js
var checkError = require('check-error');
const checkError = require('check-error');

var funcThatThrows = function() { throw new TypeError('I am a TypeError') };
var caughtErr;
const funcThatThrows = function() { throw new TypeError('I am a TypeError') };
let caughtErr;

try {
funcThatThrows();
} catch(e) {
caughtErr = e;
}

var sameInstance = caughtErr;
let sameInstance = caughtErr;

checkError.getConstructorName(caughtErr) // 'TypeError'
```

#### .getMessage(err)

```js
var checkError = require('check-error');
const checkError = require('check-error');

var funcThatThrows = function() { throw new TypeError('I am a TypeError') };
var caughtErr;
const funcThatThrows = function() { throw new TypeError('I am a TypeError') };
let caughtErr;

try {
funcThatThrows();
} catch(e) {
caughtErr = e;
}

var sameInstance = caughtErr;
let sameInstance = caughtErr;

checkError.getMessage(caughtErr) // 'I am a TypeError'
```