Vergleichen Sie zwei Strings funktioniert nicht richtig in Javascript

Question

Hier ist meine Javascript-Funktion, wo ich zwei Strings vergleichen einen Wert erhalten als Funktionsparameter und ein anderes holt von JSON, die von Frühjahr Antwort kommt.

Aber ich bin sehr überrascht Ich bin nicht in der Lage, zwei Zeichenfolgen mit === und == zu vergleichen, kann ich die Werte im Debugger sehen.

ich meine Funktion von meinem HTML-Code caling:

<textarea onblur="searchProduct(this.value)"></textarea > 

Javascript:

function searchProduct(value) 
{ 
    alert(value); 
    for (i in allProducts) { 
     console.log(allProducts[0].productName); 
     var tempProductName=allProducts[i].productName; 
      alert(tempProductName.toString() == value.toString()); 
     // checks product name is present or not 
     if(tempProductName.toString() === value.toString()){ 
//   setting other values details of products 
        $('#description').val(allProducts[i].productDescription); 
        $('.cost').val(allProducts[i].unitPrice); 
     }//if 

     } 
}//searchProduct 

allProducts: Antwort vom Frühjahr

[{ "productId": 3, "sku": "QTY", "vendorProductId": "v1", "productName": "P1name", "productDescription": "p1 desc", "supplierId": "s1", "categoryId": "c", "mengePerUnit": 1,0, "unitPrice": 760,0, "msrp": 1,0, "availableSize": 40,0, "availableColors": "schwarz, blau", "size": 40.0, "Farbe": "weiß", "Rabatt": 0.0, "unitWeight": 1.0, "unitsInStock": 148.0, "unitsOnOrder": 500.0, "reorderLevel": 150.0, "productAvailable": "Y", "discountAvailable ":" N "," currentOrder ": 0.0," BildURL ":" Bildpfad "," Ranking ": 10," Notiz ":" Beispielnotizen "," SMS-Notifikation ":" N "," productExpiryDate ": null, "productDeleted": null, "alertExpiryDate": null, "idsku": "IDSKU1"}, {"productId": 4, "sku": "QTY", "vendorProductId": "v1", "productName": "P2name "productDescription": "p1 desc", "supplierId": "s1", "categoryId": "c", "mengePerUnit": 1,0, "unitPrice": 1,0, "msrp": 1,0, "availableSize": 40,0 , "availableColors": "schwarz, blau", "Größe": 40,0, "Farbe": "weiß", "Rabatt": 0,0, "unitWeight": 1,0, "unitsInStock": 150,0, "unitsOnOrder": 500,0, " reorderLevel ": 150.0," productAvailable ":" Y "," discountAvailable ":" N "," currentOrder ": 0.0," BildURL ":" Bildpfad "," Ranking ": 10," note ":" Sample Notes " , "smsNotification": "N" "productExpiryDate": null, "productDeleted": null, "alertExpiryDate": null, "idsku": "IDSKU1"}, {"productId": 5, "sku": "QTY", "vendorProductId": "v1" "productName": "P3name", "productDescription": "p1 desc", "supplierId": "s1", "categoryId": "c", "mengePerUnit": 1.0, "unitPrice": 1.0, "msrp": 1.0, "availableSize": 40.0, "availableColors": "schwarz, blau", "size": 40.0, "color": "weiß", "discount": 0.0, "unitWeight": 1.0, "unitsInStock": 1000.0, "unitsOnOrder": 500.0, "reorderLevel": 150.0, "productAvailable": "Y", "discountAvailable": "N", "currentOrder": 0.0, "BildURL": "Bildpfad", "Ranking": 10, " note ":" Beispielnotizen "," smsNotification ":" N "," productExpiryDate ": null," productDeleted ": null," alertExpiryDate ": null," idsku ":" IDSKU1 "}, {" productId ": 6, "sku": "QTY", "vendorProductId": "v1", "productName": "P4name", "productDescription": "p1 desc", "supplierId": "s1", "categoryId": "c", " mengePerUnit ": 1.0," unitPrice ": 1.0," msrp ": 1.0," availableSize ": 40.0," availableColors ":" schwarz, blau "," size ": 40.0," color ":" weiß "," discount " : 0.0, "unitWeight": 1.0, "unitsIn Stock ": 1000.0," unitsOnOrder ": 500.0," reorderLevel ": 150.0," productAvailable ":" Y "," discountAvailable ":" N "," currentOrder ": 0.0," BildURL ":" Bildpfad "," Ranking ": 10," Notiz ":" Beispielnotizen "," SMS-Benachrichtigung ":" N "," ProductExpiryDate ": null," ProductDeleted ": null," AlertExpiryDate ": null," Idsku ":" IDSKU1 "}, {" productId ": 7," sku ":" QTY "," vendorProductId ":" v1 "," productName ":" P5name "," productDescription ":" p1 desc "," supplierId ":" s1 "," categoryId ": "c", "mengePerUnit": 1,0, "unitPrice": 1,0, "msrp": 1,0, "availableSize": 40,0, "availableColors": "schwarz, blau", "size": 40,0, "color": "weiß "," Rabatt ": 0.0," unitWeight ": 1.0," unitsInStock ": 1000.0," unitsOnOrder ": 500.0," reorderLevel ": 150.0," productAvailable ":" Y "," discountAvailable ":" N "," currentOrder ": 0.0," pictureURL ":" Bildpfad "," Rangfolge ": 10," Notiz ":" Beispielnotizen "," smsNotification ":" N "," productExpiryDate ": null," productDeleted ": null," alertExpiryDate ": null," idsku ":" IDSKU1 "}, {" productId ": 8," sku ":" QTY "," HerstellerProduktId ":" v1 "," productName ":" P6name "," productDescription ":" p1 beschreibung "," supplierId ":" s1 "," KategorieId ":" c "," mengePerUnit ": 1.0," unitPrice ": 1.0," msrp ": 1.0," availableSize ": 40.0," availableColors ":" schwarz, blau "," Größe ": 40.0," Farbe ":" weiß "," Rabatt ": 0.0," unitWeight ": 1.0," unitsInStock ": 1000.0," unitsOnOrder ": 500.0," reorderLevel ": 150.0," productAvailable ": "Y", "RabattAvailable": "N", "CurrentOrder": 0.0, "pictureURL": "Bildpfad", "Ranking": 10, "note": "Beispielnotizen", "smsNotification": "N", "productExpiryDate": null, "productDeleted": null, "alertExpiryDate": null, "idsku": "IDSKU1"}, {"productId": 9, "sku": "QTY", "vendorProductId": "v1", "productName": "P7name", "productDescription": "p1 desc" "supplierId": "s1", "categoryId": "c", "mengePerUnit": 1.0, "unitPrice": 1.0, "msrp": 1.0, "availableSize": 40.0, "availableColors": "schwarz, blau" , "Größe": 40,0, "Farbe": "weiß", "Rabatt": 0,0, "unitWeight": 1,0, "unitsInStock": 1000,0, "unitsOnOrder": 500,0, "reorderLevel": 150,0, "productAvailable": " Y "," RabattAvailable ":" N "," CurrentOrder ": 0.0," BildURL ":" Bildpfad "," Ranking ": 10," Notiz ":" Sample Notes "," SMSNotification ":" N "," productExpiryDate ": null," productDeleted ": null," alertExpiryDate ": null," idsku ":" IDSKU1 "}, {" productId ": 10," sku ":" QTY "," vendorProductId ":" v1 "," productName ":" P8name "," productDescription ":" p1 desc "," Lieferanten-ID ":" s1 "," categoryId ":" c "," mengePerUnit ": 1.0," unitPrice ": 1.0," msrp ": 1.0, "availableSize": 40.0, "availableCo lors ":" schwarz, blau "," Größe ": 40.0," Farbe ":" weiß "," Rabatt ": 0.0," unitWeight ": 1.0," unitsInStock ": 1000.0," unitsOnOrder ": 500.0," reorderLevel " : 150.0, "productAvailable": "Y", "discountAvailable": "N", "currentOrder": 0.0, "BildURL": "Bildpfad", "Ranking": 10, "note": "Beispielnotizen", " "smsNotification": "N", "productExpiryDate": null, "productDeleted": null, "alertExpiryDate": null, "idsku": "IDSKU1"}, {"productId": 11, "sku": "QTY", " vendorProductId ":" v1 "," productName ":" P9name "," productDescription ":" p1 desc "," Lieferanten-ID ":" s1 "," categoryId ":" c "," mengePerUnit ": 1.0," unitPrice ": 1.0, "msrp": 1.0, "availableSize": 40.0, "availableColors": "schwarz, blau", "Größe": 40.0, "color": "weiß", "Rabatt": 0.0, "unitWeight": 1.0, "unitsInStock": 1000.0, "unitsOnOrder": 500.0, "reorderLevel": 150.0, "productAvailable": "Y", "discountAvailable": "N", "currentOrder": 0.0, "pictureURL": "Bildpfad", " ranking ": 10," note ":" Beispielnotizen "," smsNotification ":" N "," productExpiryDate ": null," productDeleted ": null," alertExpiryDate ": null," idsku ":" IDSKU1 "}, { "Produkt-ID": 1 2, "sku": "QTY", "vendorProductId": "v1", "productName": "P9name", "productDescription": "p1 desc", "supplierId": "s1", "categoryId": "c" , "mengePerUnit": 1,0, "unitPrice": 1,0, "msrp": 1,0, "availableSize": 40,0, "availableColors": "schwarz, blau", "size": 40,0, "color": "weiß", " Rabatt ": 0.0," unitWeight ": 1.0," unitsInStock ": 1000.0," unitsOnOrder ": 500.0," reorderLevel ": 150.0," productAvailable ":" Y "," discountAvailable ":" N "," currentOrder ": 0.0 , "pictureURL": "Bildpfad", "Rangfolge": 10, "Notiz": "Beispielnotizen", "smsNotification": "N", "productExpiryDate": null, "productDeleted": null, "alertExpiryDate": null , "idsku": "IDSKU1"}, {"productId": 13, "sku": "QTY", "vendorProductId": "v1", "productName": "P9name", "productDescription": "p1 desc", "supplierId": "s1", "KategorieId": "c", "mengePerUnit": 1.0, "unitPrice": 1.0, "msrp": 1.0, "availableSize": 40.0, "availableColors": "schwarz, blau", "Größe": 40.0, "Farbe": "Weiß", "Rabatt": 0.0, "Einheitsgewicht": 1.0, "MaßeinheitenInStock": 1000.0, "EinheitenAuftrag": 500.0, "ReorderLevel": 150.0, "ProduktAvailable": "Y "," RabattVerfügbar ":" N "," currentOrder ": 0.0," pictureURL ":" Bildpfad "," Ranking ": 10," note ":" Beispielnotizen "," smsNotification ":" N "," productExpiryDate ": null," productDeleted ": null, "alertExpiryDate": null, "idsku": "IDSKU1"}, {"productId": 14, "sku": "QTY", "vendorProductId": "v1", "productName": "P9name", "productDescription ":" p1 desc "," supplierId ":" s1 "," KategorieId ":" c "," mengePerUnit ": 1,0," unitPrice ": 1,0," msrp ": 1,0," availableSize ": 40,0," availableColors " : "schwarz, blau", "Größe": 40,0, "Farbe": "weiß", "Rabatt": 0,0, "unitWeight": 1,0, "unitsInStock": 1000,0, "unitsOnOrder": 500,0, "reorderLevel": 150,0 , "productAvailable": "Y", "discountAvailable": "N", "currentOrder": 0.0, "BildURL": "Bildpfad", "Ranking": 10, "note": "Beispielnotizen", "smsNotification" : "N", "productExpiryDate": null, "productDeleted": null, "alertExpiryDate": null, "idsku": "IDSKU1"}, {"productId": 15, "sku": "QTY", "vendorProductId" : "v1", "productName": "P9name", "productDescription": "p1 desc", "Lieferanten-ID": "s1", "categoryId": "c", "mengePerUnit": 1.0, "unitPrice": 1.0, "msrp": 1.0, "availableSiz e ": 40.0," availableColors ":" schwarz, blau "," size ": 40.0," color ":" weiß "," discount ": 0.0," unitWeight ": 1.0," unitsInStock ": 1000.0," unitsOnOrder " : 500.0, "reorderLevel": 150.0, "productAvailable": "Y", "discountAvailable": "N", "currentOrder": 0.0, "BildURL": "Bildpfad", "Ranking": 10, "Hinweis": "Beispielnotizen", "smsNotification": "N", "productExpiryDate": null, "productDeleted": null, "alertExpiryDate": null, "idsku": "IDSKU1"}, {"productId": 16, "sku" : "QTY", "vendorProductId": "v1", "productName": "P10name", "productDescription": "p1 desc", "supplierId": "s1", "categoryId": "c", "mengePerUnit": 1,0, "unitPrice": 1,0, "msrp": 1,0, "availableSize": 40,0, "availableColors": "schwarz, blau", "Größe": 40,0, "color": "weiß", "Rabatt": 0,0, "unitWeight": 1.0, "unitsInStock": 1000.0, "unitsOnOrder": 500.0, "reorderLevel": 150.0, "productAvailable": "Y", "discountAvailable": "N", "currentOrder": 0.0, "pictureURL": "Bildpfad", "Ranking": 10, "note": "Beispielnotizen", "smsNotification": "N", "productExpiryDate": null, "productDeleted": null, "alertExpiryDate": null, "idsku":

String.prototype.equals = function (str2) { 
    return this.indexOf(str2) == 0 && this.length == str2.length; 
} 

Oder ein "PHP" Stil wie Methode: "IDSKU1"}]

Answer 1

JS Zeichenfolge Vergleich Groß-und Kleinschreibung, und Sie benötigen wahrscheinlich c ase unempfindlich ein, zum Beispiel:

tempProductName.toUpperCase() === value.toUpperCase() 

statt:

tempProductName.toString() === value.toString() 

Sie nicht toString() sowieso brauchen, weil das Feld bereits eine Zeichenfolge ist.

Answer 2

Sie können Ihre eigene Zeichenfolge Vergleichsverfahren mit indexOf und length implementieren

function string_compare (str1, str2) { 
    return str1.indexOf(str2) == 0 && str1.length == str2.length; 
} 

Answer 3

auf den Code der Suche, sollte diese Arbeit.

Versuchen Sie, die Iterator Wechsel - for..in ist über Objekte zu iterieren (dh Wörterbücher.). Iterieren ein Array, verwenden entweder eine regelmäßige for oder ein forEach:

function searchProduct(value) { 
    allProducts 
    .filter(function(product) { 
     return product[productName] === value 
    }) 
    .forEach(function(product) { 
     $('#description').val(product.productDescription); 
     $('.cost').val(product.unitPrice); 
    }); 
}