How to use 'v bind' in JavaScript

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function bind(cmdObj) {
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    var cmdName = cmdObj.cmd[cmdObj.attrName];
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    if (!cmdName || !cmdObj.cmd.func || "function" !== typeof cmdObj.cmd.func || !valid(cmdObj.cmd, cmdName)) {
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        evUtil.log("comply: has invalid params: command=[" + cmdName + "]", "ERROR", cmdObj.loggerName);
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        return null;
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    }
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    if (cmdObj.lstnrs[cmdName] && cmdObj.lstnrs[cmdName].length) {
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        evUtil.log("comply: cannot comply because command already exist command=" + cmdName, "ERROR", cmdObj.loggerName);
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        return null;
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    }
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    var cmdId = cmdObj.prefix + (cmdObj.id++);
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    var newObj = {
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        id: cmdId,
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        func: cmdObj.cmd.func,
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        context: cmdObj.cmd.context || null,
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        appName: cmdObj.cmd.appName
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    };
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    cmdObj.lstnrs[cmdName] = cmdObj.lstnrs[cmdName] || [];
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    cmdObj.lstnrs[cmdName].push(newObj);
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    evUtil.log("Cmd comply: evName=[" + cmdName + "] appName=" + newObj.appName, "DEBUG", cmdObj.loggerName);
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    return cmdId;
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}

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function bind(v) {
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    for(let name in gErrors) {
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        if(gErrors.hasOwnProperty(name)) {
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            v[name] = gErrors[name];
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        }
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    }
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    return v;
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}