check upload img extension jquery
<input type="file" id="image" accept="image/*" onChange="validate(this.value)"/>
function validate(file) {
var ext = file.split(".");
ext = ext[ext.length-1].toLowerCase();
var arrayExtensions = ["jpg" , "jpeg", "png", "bmp", "gif"];
if (arrayExtensions.lastIndexOf(ext) == -1) {
alert("Wrong extension type.");
$("#image").val("");
}
}
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