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JavaScript provided a trim method on string types to trim any whitespaces present at the beginning or ending of the string.
javascript
1" Hello World ".trim(); //Hello WorldIf your browser(<IE9) doesn't support this method then you can use below polyfill.
javascript
1if (!String.prototype.trim) {
2 (function () {
3 // Make sure we trim BOM and NBSP
4 var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
5 String.prototype.trim = function () {
6 return this.replace(rtrim, "");
7 };
8 })();
9 }Advertisement
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JavaScript Coding Exercise 51
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