Merge pull request #52 from Keillion/master

update README.md

Author: Tom-Dynamsoft

README.md

@@ -266,16 +266,25 @@ The library is based on the `WebAssembly` standard, therefore, **on first use**,
 
 `Dynamsoft.BarcodeReader.loadWasm` is the API to start the initialization. 
 
-```javascript
-Dynamsoft.BarcodeReader.loadWasm()
-    .then(()=>{ /* success */ }, ex=>{console.error(ex.message||ex);})
+```js
+try{
+    await Dynamsoft.BarcodeReader.loadWasm();
+}catch(ex){
+    console.error(ex);
+}
 ```
 
 That said, as shown in the sample above, you don't necessarily need to call the above API because other APIs like `Dynamsoft.BarcodeReader.createInstance` and `Dynamsoft.BarcodeScanner.createInstance` will call `loadWasm` themselves.
 
-```javascript
-Dynamsoft.BarcodeReader.createInstance()
-    .then(reader=>{ /* success */ }, ex=>{console.error(ex.message||ex);})
+```js
+let reader = null;
+let scanner = null;
+try{
+    reader = await Dynamsoft.BarcodeReader.createInstance();
+    scanner = await Dynamsoft.BarcodeScanner.createInstance();
+}catch(ex){
+    console.error(ex);
+}
 ```
 
 > **NOTE**: Including the library with a script tag doesn't automatically initialize the library. For better performance, you may want to call `loadWasm` to download and compile the `wasm` file in advance and create a reader or scanner instance later.
@@ -542,7 +551,7 @@ let scanner = null;
 To speed up the scanning process, you can choose to scan only a specific area/region.
 
 ```javascript
-let settings = await barcodeScanner.getRuntimeSettings();
+let settings = await scanner.getRuntimeSettings();
 /*
  * 1 means true
  * Using a percentage is easier

doc/api reference/index.html

@@ -408,11 +408,20 @@ <h3>Initializing</h3>
 				</a>
 				<p>The library is based on the <code>WebAssembly</code> standard, therefore, <strong>on first use</strong>, it needs some time to download and compile the <code>wasm</code> files. After the first use, the browser may cache the file so that the next time no &#39;downloading&#39; is required.</p>
 				<p><code>Dynamsoft.BarcodeReader.loadWasm</code> is the API to start the initialization. </p>
-				<pre><code class="language-javascript">Dynamsoft.BarcodeReader.loadWasm()
-    .then(<span class="hljs-function"><span class="hljs-params">()</span>=&gt;</span>{ <span class="hljs-comment">/* success */</span> }, ex=&gt;{<span class="hljs-built_in">console</span>.error(ex.message||ex);})</code></pre>
+				<pre><code class="language-js"><span class="hljs-keyword">try</span>{
+    <span class="hljs-keyword">await</span> Dynamsoft.BarcodeReader.loadWasm();
+}<span class="hljs-keyword">catch</span>(ex){
+    <span class="hljs-built_in">console</span>.error(ex);
+}</code></pre>
 				<p>That said, as shown in the sample above, you don&#39;t necessarily need to call the above API because other APIs like <code>Dynamsoft.BarcodeReader.createInstance</code> and <code>Dynamsoft.BarcodeScanner.createInstance</code> will call <code>loadWasm</code> themselves.</p>
-				<pre><code class="language-javascript">Dynamsoft.BarcodeReader.createInstance()
-    .then(<span class="hljs-function"><span class="hljs-params">reader</span>=&gt;</span>{ <span class="hljs-comment">/* success */</span> }, ex=&gt;{<span class="hljs-built_in">console</span>.error(ex.message||ex);})</code></pre>
+				<pre><code class="language-js"><span class="hljs-keyword">let</span> reader = <span class="hljs-literal">null</span>;
+<span class="hljs-keyword">let</span> scanner = <span class="hljs-literal">null</span>;
+<span class="hljs-keyword">try</span>{
+    reader = <span class="hljs-keyword">await</span> Dynamsoft.BarcodeReader.createInstance();
+    scanner = <span class="hljs-keyword">await</span> Dynamsoft.BarcodeScanner.createInstance();
+}<span class="hljs-keyword">catch</span>(ex){
+    <span class="hljs-built_in">console</span>.error(ex);
+}</code></pre>
 				<blockquote>
 					<p><strong>NOTE</strong>: Including the library with a script tag doesn&#39;t automatically initialize the library. For better performance, you may want to call <code>loadWasm</code> to download and compile the <code>wasm</code> file in advance and create a reader or scanner instance later.</p>
 				</blockquote>
@@ -640,7 +649,7 @@ <h3>Show found barcodes</h3>
 					<h3>Read a specific area/region</h3>
 				</a>
 				<p>To speed up the scanning process, you can choose to scan only a specific area/region.</p>
-				<pre><code class="language-javascript"><span class="hljs-keyword">let</span> settings = <span class="hljs-keyword">await</span> barcodeScanner.getRuntimeSettings();
+				<pre><code class="language-javascript"><span class="hljs-keyword">let</span> settings = <span class="hljs-keyword">await</span> scanner.getRuntimeSettings();
 <span class="hljs-comment">/*
  * 1 means true
  * Using a percentage is easier
@@ -737,7 +746,7 @@ <h2>License Agreement</h2>
 				<a href="#contact-us" id="contact-us" style="color: inherit; text-decoration: none;">
 					<h2>Contact Us</h2>
 				</a>
-				<p>If there are any questions, please feel free to contact <a href="mailto:&#x73;&#x75;&#x70;&#x70;&#x6f;&#114;&#116;&#64;&#x64;&#121;&#110;&#97;&#x6d;&#115;&#x6f;&#x66;&#116;&#x2e;&#x63;&#111;&#x6d;">&#x73;&#x75;&#x70;&#x70;&#x6f;&#114;&#116;&#64;&#x64;&#121;&#110;&#97;&#x6d;&#115;&#x6f;&#x66;&#116;&#x2e;&#x63;&#111;&#x6d;</a>.</p>
+				<p>If there are any questions, please feel free to contact <a href="mailto:&#115;&#117;&#x70;&#x70;&#111;&#114;&#x74;&#x40;&#x64;&#121;&#110;&#97;&#x6d;&#115;&#x6f;&#102;&#x74;&#x2e;&#99;&#111;&#x6d;">&#115;&#117;&#x70;&#x70;&#111;&#114;&#x74;&#x40;&#x64;&#121;&#110;&#97;&#x6d;&#115;&#x6f;&#102;&#x74;&#x2e;&#99;&#111;&#x6d;</a>.</p>
 			</div>
 		</div>
 		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">

doc/api reference/interfaces/barcodereaderexception.html

@@ -100,7 +100,7 @@ <h3>Error</h3>
 					<div class="tsd-signature tsd-kind-icon">Error<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">ErrorConstructor</span></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in D:/workfoler/tfs24/Default/DBR/DBR_WASM_7.2/node_modules/typedoc/node_modules/typescript/lib/lib.es5.d.ts:984</li>
+							<li>Defined in D:/workfoler/tfs24/Default/DBR/DBR_WASM/node_modules/typedoc/node_modules/typescript/lib/lib.es5.d.ts:984</li>
 						</ul>
 					</aside>
 				</section>
@@ -121,7 +121,7 @@ <h3>message</h3>
 					<aside class="tsd-sources">
 						<p>Inherited from Error.message</p>
 						<ul>
-							<li>Defined in D:/workfoler/tfs24/Default/DBR/DBR_WASM_7.2/node_modules/typedoc/node_modules/typescript/lib/lib.es5.d.ts:974</li>
+							<li>Defined in D:/workfoler/tfs24/Default/DBR/DBR_WASM/node_modules/typedoc/node_modules/typescript/lib/lib.es5.d.ts:974</li>
 						</ul>
 					</aside>
 				</section>
@@ -132,7 +132,7 @@ <h3>name</h3>
 					<aside class="tsd-sources">
 						<p>Inherited from Error.name</p>
 						<ul>
-							<li>Defined in D:/workfoler/tfs24/Default/DBR/DBR_WASM_7.2/node_modules/typedoc/node_modules/typescript/lib/lib.es5.d.ts:973</li>
+							<li>Defined in D:/workfoler/tfs24/Default/DBR/DBR_WASM/node_modules/typedoc/node_modules/typescript/lib/lib.es5.d.ts:973</li>
 						</ul>
 					</aside>
 				</section>
@@ -144,7 +144,7 @@ <h3><span class="tsd-flag ts-flagOptional">Optional</span> stack</h3>
 						<p>Inherited from Error.stack</p>
 						<p>Overrides Error.stack</p>
 						<ul>
-							<li>Defined in D:/workfoler/tfs24/Default/DBR/DBR_WASM_7.2/node_modules/typedoc/node_modules/typescript/lib/lib.es5.d.ts:975</li>
+							<li>Defined in D:/workfoler/tfs24/Default/DBR/DBR_WASM/node_modules/typedoc/node_modules/typescript/lib/lib.es5.d.ts:975</li>
 						</ul>
 					</aside>
 				</section>