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<html><head><base id="myBase" href="https://www.w3schools.com/jsref/"></head><body><p>Click the button to set the value of the target attribute of ALL links on a page to "_blank".</p><p><a href="https://www.w3schools.com/">W3Schools</a></p><p><a href="https://www.w3schools.com/">W3Schools</a></p><p><b>Note:</b> Try the links before and after you have clicked the button!</p><button onclick="myFunction()">Try it</button><p id="demo"></p><script>function myFunction() { document.getElementById("myBase").target = "_blank"; document.getElementById("demo").innerHTML = "The value of the target attribute was set.";}</script></body></html>