aaac7fed
 liuqimichale
add
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"use strict";
var ensureString = require("../../object/validate-stringifiable-value");
module.exports = function (search) {
var string = ensureString(this), count = 0, index = 0;
search = ensureString(search);
if (!search) throw new TypeError("Search string cannot be empty");
while ((index = string.indexOf(search, index)) !== -1) {
++count;
index += search.length;
}
return count;
};
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