Confirm Alert Before Deleting or Similar Action
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function removeProgram(){ if(confirm('are you sure you want to delete program?')){ //do whatever here } } //---OR---// <a href="delete/123" onclick="return confirm('are you sure?')">delete</a> |
Check If Variable is Undefined Or Has No Value
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//To check if variable "data" contains any value or not. if(data !== null && data !== undefined){ //Do whatever here } |
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//you can write following code in document.ready function $('#id_of_input').keypress(function (e) { if(e.which ==13){ //13 is numeric value of enter key form.submit(); } }); |
Hit Enter Inside Input Field And Submit Form