Javascript validation for text area -


i have text area should accept values format on on change validation: string1-value1, string2-value2, string3-value3,... example india - ind, usa - us, kenya - kya. how can using javascript validation. tried validations, not working. please me.

try autocomplete

// can append strategies existing textcomplete object. $('#textarea1').textcomplete([     { // tech companies         words: ['apple', 'google', 'facebook', 'github'],         match: /\b(\w{2,})$/,         search: function (term, callback) {             callback($.map(this.words, function (word) {                 return word.indexof(term) === 0 ? word : null;             }));         },         index: 1,         replace: function (word) {             return word + ' ';         },         placement: 'top'     } ]);

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