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Fixes #11279

@googlebot googlebot added the cla: yes PR author has agreed to Google's Contributor License Agreement label May 11, 2018
@tinayuangao tinayuangao requested review from crisbeto and jelbourn May 11, 2018 17:54
@tinayuangao tinayuangao added target: patch This PR is targeted for the next patch release pr: needs review labels May 11, 2018
if (this.multiple && Array.isArray(this._rawValue)) {
return !!this._rawValue.find(value => toggle.value != null && value === toggle.value);
const match = this._rawValue.find(value => toggle.value != null && value === toggle.value);
return typeof match !== 'undefined';
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You should be able to do return match != null, which will capture null and undefined without any of the other falsy values

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Thanks. Updated

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LGTM, one nit.

if (this.multiple && Array.isArray(this._rawValue)) {
return !!this._rawValue.find(value => toggle.value != null && value === toggle.value);
const match = this._rawValue.find(value => toggle.value != null && value === toggle.value);
return match != null;
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You can just return here: return !!this._rawValue.find(...).

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I found returning !!this._rawValue doesn't work.
Changed to null != this._rawValue.find....


if (this.multiple && Array.isArray(this._rawValue)) {
return !!this._rawValue.find(value => toggle.value != null && value === toggle.value);
return null != this._rawValue.find(value => toggle.value != null && value === toggle.value);
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If you only care about the presence of the value, you can use some instead of find:

return this._rawValue.some(v => toggle.value != null && v === toggle.value);

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Thanks. Updated.

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@jelbourn jelbourn left a comment

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LGTM

@jelbourn jelbourn added pr: lgtm action: merge The PR is ready for merge by the caretaker and removed pr: needs review labels May 11, 2018
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ngbot bot commented May 11, 2018

I see that you just added the pr: merge ready label, but the following checks are still failing:
    failure status "continuous-integration/travis-ci/pr" is failing

If you want your PR to be merged, it has to pass all the CI checks.

If you can't get the PR to a green state due to flakes or broken master, please try rebasing to master and/or restarting the CI job. If that fails and you believe that the issue is not due to your change, please contact the caretaker and ask for help.

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action: merge The PR is ready for merge by the caretaker cla: yes PR author has agreed to Google's Contributor License Agreement target: patch This PR is targeted for the next patch release

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[Button Toggle] Initial value of [0] does not work when values are indicies

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