javascript - How to add string object's value into JS regular expression? - 


  var foo = "blaa"; Var regex = / foo / i;  / blaa / i  के बजाय

परिणाम / foo / i

< Div class = "post-text" itemprop = "text">

आप कन्स्ट्रक्टर का उपयोग कर सकते हैं: 

  var regex = new RegExp (foo, 'i');

यह दो तर्कों को लेता है, पहले एक स्ट्रिंग की अपेक्षा करता है जो नियमित अभिव्यक्ति पैटर्न का प्रतिनिधित्व करती है और दूसरे वैकल्पिक तर्क में आप चाहते हैं कि नियमित अभिव्यक्ति फ़्लैग को परिभाषित कर सकते हैं।


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