Add strict equalities in src/display/api.js

src/display/api.js

@@ -503,8 +503,7 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
       // this call to render.
       this.pendingDestroy = false;
 
-      var renderingIntent = ('intent' in params ?
-        (params.intent == 'print' ? 'print' : 'display') : 'display');
+      var renderingIntent = (params.intent === 'print' ? 'print' : 'display');
 
       if (!this.intentStates[renderingIntent]) {
         this.intentStates[renderingIntent] = {};
@@ -1003,7 +1002,7 @@ var WorkerTransport = (function WorkerTransportClosure() {
       messageHandler.on('JpegDecode', function(data) {
         var imageUrl = data[0];
         var components = data[1];
-        if (components != 3 && components != 1) {
+        if (components !== 3 && components !== 1) {
           return Promise.reject(
             new Error('Only 3 components or 1 component can be returned'));
         }
@@ -1022,13 +1021,13 @@ var WorkerTransport = (function WorkerTransportClosure() {
             var data = tmpCtx.getImageData(0, 0, width, height).data;
             var i, j;
 
-            if (components == 3) {
+            if (components === 3) {
               for (i = 0, j = 0; i < rgbaLength; i += 4, j += 3) {
                 buf[j] = data[i];
                 buf[j + 1] = data[i + 1];
                 buf[j + 2] = data[i + 2];
               }
-            } else if (components == 1) {
+            } else if (components === 1) {
               for (i = 0, j = 0; i < rgbaLength; i += 4, j++) {
                 buf[j] = data[i];
               }