javascript - How to set selected option of select element by its ID? -

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  & lt; आईडी = "कॉम्बो बॉक्स" & gt; & Lt; विकल्प आईडी = "1" & gt; एक & lt; / विकल्प & gt; & Lt; विकल्प आईडी = "2" & gt; दो & lt; / विकल्प & gt; & Lt; विकल्प आईडी = "3" & gt; तीन & lt; / विकल्प & gt; & Lt; विकल्प आईडी = "4" & gt; चार & lt; / विकल्प & gt; & Lt; / चयन & gt;   
 मैं आईडी 3 के साथ विकल्प का चयन करना चाहता हूं। क्या इसमें कोई रास्ता नहीं है, बिना पाश कैसे करना है? मुझे इस तरह से कुछ उम्मीद है  
  $ ("# combobox")। Val ("3");   
 लेकिन आईडी के बजाय मूल्य के साथ। (इसलिए मेरा मतलब है कि कॉम्बो बॉक्स के सदस्य के रूप में उस विकल्प को एक्सेस करना है, जैसे कि  document.getElementById ('3'); )   
 
 
  & lt; स्क्रिप्ट प्रकार =" टेक्स्ट / जावास्क्रिप्ट "& gt; document.getElementById ( "3") का चयन किया = सच। & Lt; / स्क्रिप्ट & gt;   
 या  
  & lt; स्क्रिप्ट प्रकार = "टेक्स्ट / जावास्क्रिप्ट" & gt; । Document.getElementById ( "बता गया") विकल्प [2] .selected सच =; & Lt; / स्क्रिप्ट & gt;   
 या  
  & lt; स्क्रिप्ट प्रकार = "टेक्स्ट / जावास्क्रिप्ट" & gt; document.getElementById ( "बता गया") SelectedIndex = 2। & Lt; / स्क्रिप्ट & gt;   
 या  
  & lt; स्क्रिप्ट प्रकार = "टेक्स्ट / जावास्क्रिप्ट" & gt; ।। Document.getElementById ( "बता गया") options.namedItem ( "3") का चयन किया सच =; & Lt; / स्क्रिप्ट & gt;   
 पिछले एक के लिए और  
 आप कम  document.getElementById ("comboBox") के लिए विकल्पों के संदर्भ को छोड़ सकते हैं। नामित इटम ("3 ")। चयनित = सच;

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